VARIoT IoT vulnerabilities database

Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.0 allows a remote, unauthenticated attacker to execute arbitrary code by sending a crafted IOCTL 81024 RPC call. Advantech WebAccess/SCADA Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. AdvantechWebAccess/SCADA is a browser-based SCADA software from Advantech, Taiwan. The software supports dynamic graphical display and real-time data control, and provides the ability to remotely control and manage automation equipment. A buffer overflow vulnerability exists in AdvantechWebAccess/SCADA version 8.4.0. The vulnerability stems from a network system or product that does not properly validate data boundaries when performing operations on memory, causing erroneous read and write operations to be performed on other associated memory locations. An attacker could exploit the vulnerability to cause a buffer overflow or heap overflow

Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e. Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels. Linux Kernel Contains a resource exhaustion vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. 7.4) - ppc64, ppc64le, x86_64 3. ========================================================================== Kernel Live Patch Security Notice 0058-1 October 22, 2019 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu: | Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 18.04 LTS | 4.15.0 | amd64 | aws | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | oem | | Ubuntu 18.04 LTS | 5.0.0 | amd64 | azure | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | aws | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | azure | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | lowlatency | Summary: Several security issues were fixed in the kernel. Software Description: - linux: Linux kernel Details: It was discovered that a race condition existed in the GFS2 file system in the Linux kernel. (CVE-2016-10905) It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. (CVE-2018-20856) It was discovered that the USB gadget Midi driver in the Linux kernel contained a double-free vulnerability when handling certain error conditions. (CVE-2018-20961) It was discovered that the XFS file system in the Linux kernel did not properly handle mount failures in some situations. (CVE-2018-20976) It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. (CVE-2018-21008) It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). (CVE-2019-0136) It was discovered that the Linux kernel on ARM processors allowed a tracing process to modify a syscall after a seccomp decision had been made on that syscall. (CVE-2019-2054) It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel, leading to a buffer overflow. (CVE-2019-2181) It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. (CVE-2019-3846) It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. (CVE-2019-10126) It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. (CVE-2019-11478) It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833) It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. (CVE-2019-12614) It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. (CVE-2019-14283) It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. (CVE-2019-14284) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14814) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14815) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14816) Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. (CVE-2019-14821) Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. (CVE-2019-14835) Update instructions: The problem can be corrected by updating your livepatches to the following versions: | Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-148.174 | 58.1 | lowlatency, generic | | 4.4.0-148.174~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-150.176 | 58.1 | generic, lowlatency | | 4.4.0-150.176~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-151.178 | 58.1 | lowlatency, generic | | 4.4.0-151.178~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-154.181 | 58.1 | lowlatency, generic | | 4.4.0-154.181~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-157.185 | 58.1 | lowlatency, generic | | 4.4.0-157.185~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-159.187 | 58.1 | lowlatency, generic | | 4.4.0-159.187~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-161.189 | 58.1 | lowlatency, generic | | 4.4.0-161.189~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-164.192 | 58.1 | lowlatency, generic | | 4.4.0-164.192~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-165.193 | 58.1 | generic, lowlatency | | 4.4.0-1083.93 | 58.1 | aws | | 4.4.0-1084.94 | 58.1 | aws | | 4.4.0-1085.96 | 58.1 | aws | | 4.4.0-1087.98 | 58.1 | aws | | 4.4.0-1088.99 | 58.1 | aws | | 4.4.0-1090.101 | 58.1 | aws | | 4.4.0-1092.103 | 58.1 | aws | | 4.4.0-1094.105 | 58.1 | aws | | 4.15.0-50.54 | 58.1 | generic, lowlatency | | 4.15.0-50.54~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-51.55 | 58.1 | generic, lowlatency | | 4.15.0-51.55~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-52.56 | 58.1 | lowlatency, generic | | 4.15.0-52.56~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-54.58 | 58.1 | generic, lowlatency | | 4.15.0-54.58~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-55.60 | 58.1 | generic, lowlatency | | 4.15.0-58.64 | 58.1 | generic, lowlatency | | 4.15.0-58.64~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-60.67 | 58.1 | lowlatency, generic | | 4.15.0-60.67~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-62.69 | 58.1 | generic, lowlatency | | 4.15.0-62.69~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-64.73 | 58.1 | generic, lowlatency | | 4.15.0-64.73~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-65.74 | 58.1 | lowlatency, generic | | 4.15.0-1038.43 | 58.1 | oem | | 4.15.0-1039.41 | 58.1 | aws | | 4.15.0-1039.44 | 58.1 | oem | | 4.15.0-1040.42 | 58.1 | aws | | 4.15.0-1041.43 | 58.1 | aws | | 4.15.0-1043.45 | 58.1 | aws | | 4.15.0-1043.48 | 58.1 | oem | | 4.15.0-1044.46 | 58.1 | aws | | 4.15.0-1045.47 | 58.1 | aws | | 4.15.0-1045.50 | 58.1 | oem | | 4.15.0-1047.49 | 58.1 | aws | | 4.15.0-1047.51 | 58.1 | azure | | 4.15.0-1048.50 | 58.1 | aws | | 4.15.0-1049.54 | 58.1 | azure | | 4.15.0-1050.52 | 58.1 | aws | | 4.15.0-1050.55 | 58.1 | azure | | 4.15.0-1050.57 | 58.1 | oem | | 4.15.0-1051.53 | 58.1 | aws | | 4.15.0-1051.56 | 58.1 | azure | | 4.15.0-1052.57 | 58.1 | azure | | 4.15.0-1055.60 | 58.1 | azure | | 4.15.0-1056.61 | 58.1 | azure | | 4.15.0-1056.65 | 58.1 | oem | | 4.15.0-1057.62 | 58.1 | azure | | 4.15.0-1057.66 | 58.1 | oem | | 4.15.0-1059.64 | 58.1 | azure | | 5.0.0-1014.14~18.04.1 | 58.1 | azure | | 5.0.0-1016.17~18.04.1 | 58.1 | azure | | 5.0.0-1018.19~18.04.1 | 58.1 | azure | | 5.0.0-1020.21~18.04.1 | 58.1 | azure | Support Information: Kernels older than the levels listed below do not receive livepatch updates. Please upgrade your kernel as soon as possible. | Series | Version | Flavors | |------------------+------------------+--------------------------| | Ubuntu 18.04 LTS | 4.15.0-1039 | aws | | Ubuntu 16.04 LTS | 4.4.0-1083 | aws | | Ubuntu 18.04 LTS | 5.0.0-1000 | azure | | Ubuntu 16.04 LTS | 4.15.0-1047 | azure | | Ubuntu 18.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 16.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 14.04 LTS | 4.4.0-148 | generic lowlatency | | Ubuntu 18.04 LTS | 4.15.0-1038 | oem | | Ubuntu 16.04 LTS | 4.4.0-148 | generic lowlatency | References: CVE-2016-10905, CVE-2018-20856, CVE-2018-20961, CVE-2018-20976, CVE-2018-21008, CVE-2019-0136, CVE-2019-2054, CVE-2019-2181, CVE-2019-3846, CVE-2019-10126, CVE-2019-10207, CVE-2019-11477, CVE-2019-11478, CVE-2019-11833, CVE-2019-12614, CVE-2019-14283, CVE-2019-14284, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835 -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce . 6.5) - x86_64 3. Bug Fix(es): * MDS mitigations not enabled on Intel Skylake CPUs (BZ#1713025) * [RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1713028) * RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1713043) 4. (CVE-2019-11477) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: linux-image-5.0.0-1008-aws 5.0.0-1008.8 linux-image-5.0.0-1008-gcp 5.0.0-1008.8 linux-image-5.0.0-1008-kvm 5.0.0-1008.8 linux-image-5.0.0-1010-raspi2 5.0.0-1010.10 linux-image-5.0.0-1014-snapdragon 5.0.0-1014.14 linux-image-5.0.0-17-generic 5.0.0-17.18 linux-image-5.0.0-17-generic-lpae 5.0.0-17.18 linux-image-5.0.0-17-lowlatency 5.0.0-17.18 linux-image-aws 5.0.0.1008.8 linux-image-gcp 5.0.0.1008.8 linux-image-generic 5.0.0.17.18 linux-image-generic-lpae 5.0.0.17.18 linux-image-gke 5.0.0.1008.8 linux-image-kvm 5.0.0.1008.8 linux-image-lowlatency 5.0.0.17.18 linux-image-raspi2 5.0.0.1010.7 linux-image-snapdragon 5.0.0.1014.7 linux-image-virtual 5.0.0.17.18 Ubuntu 18.10: linux-image-4.18.0-1013-gcp 4.18.0-1013.14 linux-image-4.18.0-1014-kvm 4.18.0-1014.14 linux-image-4.18.0-1016-raspi2 4.18.0-1016.18 linux-image-4.18.0-1018-aws 4.18.0-1018.20 linux-image-4.18.0-1020-azure 4.18.0-1020.20 linux-image-4.18.0-22-generic 4.18.0-22.23 linux-image-4.18.0-22-generic-lpae 4.18.0-22.23 linux-image-4.18.0-22-lowlatency 4.18.0-22.23 linux-image-4.18.0-22-snapdragon 4.18.0-22.23 linux-image-aws 4.18.0.1018.18 linux-image-azure 4.18.0.1020.21 linux-image-gcp 4.18.0.1013.13 linux-image-generic 4.18.0.22.23 linux-image-generic-lpae 4.18.0.22.23 linux-image-gke 4.18.0.1013.13 linux-image-kvm 4.18.0.1014.14 linux-image-lowlatency 4.18.0.22.23 linux-image-raspi2 4.18.0.1016.13 linux-image-snapdragon 4.18.0.22.23 linux-image-virtual 4.18.0.22.23 Ubuntu 18.04 LTS: linux-image-4.15.0-1015-oracle 4.15.0-1015.17 linux-image-4.15.0-1034-gcp 4.15.0-1034.36 linux-image-4.15.0-1036-kvm 4.15.0-1036.36 linux-image-4.15.0-1038-raspi2 4.15.0-1038.40 linux-image-4.15.0-1041-aws 4.15.0-1041.43 linux-image-4.15.0-1043-oem 4.15.0-1043.48 linux-image-4.15.0-1055-snapdragon 4.15.0-1055.59 linux-image-4.15.0-52-generic 4.15.0-52.56 linux-image-4.15.0-52-generic-lpae 4.15.0-52.56 linux-image-4.15.0-52-lowlatency 4.15.0-52.56 linux-image-4.18.0-1020-azure 4.18.0-1020.20~18.04.1 linux-image-4.18.0-22-generic 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-generic-lpae 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-lowlatency 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-snapdragon 4.18.0-22.23~18.04.1 linux-image-aws 4.15.0.1041.40 linux-image-azure 4.18.0.1020.19 linux-image-gcp 4.15.0.1034.36 linux-image-generic 4.15.0.52.54 linux-image-generic-hwe-18.04 4.18.0.22.72 linux-image-generic-lpae 4.15.0.52.54 linux-image-generic-lpae-hwe-18.04 4.18.0.22.72 linux-image-kvm 4.15.0.1036.36 linux-image-lowlatency 4.15.0.52.54 linux-image-lowlatency-hwe-18.04 4.18.0.22.72 linux-image-oem 4.15.0.1043.47 linux-image-oracle 4.15.0.1015.18 linux-image-raspi2 4.15.0.1038.36 linux-image-snapdragon 4.15.0.1055.58 linux-image-snapdragon-hwe-18.04 4.18.0.22.72 linux-image-virtual 4.15.0.52.54 linux-image-virtual-hwe-18.04 4.18.0.22.72 Ubuntu 16.04 LTS: linux-image-4.15.0-1015-oracle 4.15.0-1015.17~16.04.1 linux-image-4.15.0-1034-gcp 4.15.0-1034.36~16.04.1 linux-image-4.15.0-1041-aws 4.15.0-1041.43~16.04.1 linux-image-4.15.0-1047-azure 4.15.0-1047.51 linux-image-4.15.0-52-generic 4.15.0-52.56~16.04.1 linux-image-4.15.0-52-generic-lpae 4.15.0-52.56~16.04.1 linux-image-4.15.0-52-lowlatency 4.15.0-52.56~16.04.1 linux-image-4.4.0-1048-kvm 4.4.0-1048.55 linux-image-4.4.0-1085-aws 4.4.0-1085.96 linux-image-4.4.0-1111-raspi2 4.4.0-1111.120 linux-image-4.4.0-1115-snapdragon 4.4.0-1115.121 linux-image-4.4.0-151-generic 4.4.0-151.178 linux-image-4.4.0-151-generic-lpae 4.4.0-151.178 linux-image-4.4.0-151-lowlatency 4.4.0-151.178 linux-image-4.4.0-151-powerpc-e500mc 4.4.0-151.178 linux-image-4.4.0-151-powerpc-smp 4.4.0-151.178 linux-image-4.4.0-151-powerpc64-emb 4.4.0-151.178 linux-image-4.4.0-151-powerpc64-smp 4.4.0-151.178 linux-image-aws 4.4.0.1085.88 linux-image-aws-hwe 4.15.0.1041.41 linux-image-azure 4.15.0.1047.51 linux-image-gcp 4.15.0.1034.48 linux-image-generic 4.4.0.151.159 linux-image-generic-hwe-16.04 4.15.0.52.73 linux-image-generic-lpae 4.4.0.151.159 linux-image-generic-lpae-hwe-16.04 4.15.0.52.73 linux-image-gke 4.15.0.1034.48 linux-image-kvm 4.4.0.1048.48 linux-image-lowlatency 4.4.0.151.159 linux-image-lowlatency-hwe-16.04 4.15.0.52.73 linux-image-oem 4.15.0.52.73 linux-image-oracle 4.15.0.1015.9 linux-image-powerpc-e500mc 4.4.0.151.159 linux-image-powerpc-smp 4.4.0.151.159 linux-image-powerpc64-emb 4.4.0.151.159 linux-image-powerpc64-smp 4.4.0.151.159 linux-image-raspi2 4.4.0.1111.111 linux-image-snapdragon 4.4.0.1115.107 linux-image-virtual 4.4.0.151.159 linux-image-virtual-hwe-16.04 4.15.0.52.73 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Bug Fix(es): * [HPE 8.0 Bug] nvme drive power button does not turn off drive (BZ#1700288) * RHEL8.0 - hw csum failure seen in dmesg and console (using mlx5/mlx4/Mellanox) (BZ#1700289) * RHEL8.0 - vfio-ap: add subsystem to matrix device to avoid libudev failures (kvm) (BZ#1700290) * [FJ8.1 Bug]: Make Fujitsu Erratum 010001 patch work on A64FX v1r0 (BZ#1700901) * [FJ8.0 Bug]: Fujitsu A64FX processor errata - panic by unknown fault (BZ#1700902) * RHEL 8.0 Snapshot 4 - nvme create-ns command hangs after creating 20 namespaces on Bolt (NVMe) (BZ#1701140) * [Cavium/Marvell 8.0 qed] Fix qed_mcp_halt() and qed_mcp_resume() (backporting bug) (BZ#1704184) * [Intel 8.1 Bug] PBF: Base frequency display fix (BZ#1706739) * [RHEL8]read/write operation not permitted to /sys/kernel/debug/gcov/reset (BZ#1708100) * RHEL8.0 - ISST-LTE:pVM:fleetwood:LPM:raylp85:After lpm seeing the console logs on the the lpar at target side (BZ#1708102) * RHEL8.0 - Backport support for software count cache flush Spectre v2 mitigation (BZ#1708112) * [Regression] RHEL8.0 - System crashed with one stress-ng-mremap stressor on Boston (kvm host) (BZ#1708617) * [intel ice Rhel 8 RC1] ethtool -A ethx causes interfaces to go down (BZ#1709433) 4. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:1485-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1485 Issue date: 2019-06-17 CVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64 3. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS). (CVE-2019-11477) * Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478) * Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * THP: Race between MADV_DONTNEED and NUMA hinting node migration code (BZ#1698103) * [RHEL7] md_clear flag missing from /proc/cpuinfo on late microcode update (BZ#1712989) * [RHEL7] MDS mitigations are not enabled after double microcode update (BZ#1712994) * WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:90 __static_key_slow_dec+0xa6/0xb0 (BZ#1713000) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service 1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service 1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: kernel-3.10.0-327.79.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.79.2.el7.noarch.rpm kernel-doc-3.10.0-327.79.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-headers-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.79.2.el7.x86_64.rpm perf-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.2): Source: kernel-3.10.0-327.79.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.79.2.el7.noarch.rpm kernel-doc-3.10.0-327.79.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-headers-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.79.2.el7.x86_64.rpm perf-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.2): Source: kernel-3.10.0-327.79.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.79.2.el7.noarch.rpm kernel-doc-3.10.0-327.79.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-devel-3.10.0-327.79.2.el7.x86_64.rpm kernel-headers-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.79.2.el7.x86_64.rpm perf-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.79.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.79.2.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-11477 https://access.redhat.com/security/cve/CVE-2019-11478 https://access.redhat.com/security/cve/CVE-2019-11479 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/tcpsack 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXQfrL9zjgjWX9erEAQh8Yw//XDYZhLE+6/G5jELh43MDCVjixj/y8u2b RaMA/eOCJcq1MXV9k5XDruAeZWoMUcCV3OvBi4NIdQ4GXNb0idp3HvXUbAn6yxjh ANslnVZO8XTYFEpxdSGJf2DLVS+uwe+bnfgQQ6BTFJCDEfOAHsPv/d+jZF3qe2Hm WdD//r+U26C23e6Mz9nu1+k3fyScj+UCYCeIWLikKzboB5TmH1KDH7DS0p71JPKE 65I6b7W1ucj0SdvTpQH7VUesww+TM7KZHHwgo0Ydqusf+RoVyYbW3jbZGb+5m5aB tb8v/zaGsXBthKZmH6LCu02P+0Jbou8vEvqCztuwmqDocAeblm3mzeL8FerKCxCp obEEUcjsTbP+RDkNp2qjlfR6V11msl9PzTHXzrQw+7qxZodE9Jhv8Tvm3uTPvbi6 OTD9ez1Hkw5yaWIJBEitGLMxl4HjHaSXOLwbWkoQcEsv1ENmKtvz6wz64zefxljX VBPkLVuLGdwOzOlXHa9Oks3bWiKYUHt36R5sdz+uYL6NTCL5CLv8oUXCN5bYWRlU lCA6f5EYCR3Em8VFChAA51f+i688hmxq4sJwNtvoMVG96FwtVgSmmikb8cFN9+C+ qLlmaaC+b8cZ9COWfw2XAMkrFCYUNt7eL4W/vlZK+GkiYUxEYFZnJAqLXOWFgVpe nLvixkiNDOA=rUVR -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . Bug Fix(es): * kernel-rt: update to the RHEL8.0.z batch#1 source tree (BZ#1704955) 4. 7) - aarch64, noarch, ppc64le 3. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks

An exploitable information disclosure vulnerability exists in the KCodes NetUSB.ko kernel module that enables the ReadySHARE Printer functionality of at least two NETGEAR Nighthawk Routers and potentially several other vendors/products. An unauthenticated, remote attacker can craft and send a packet containing an opcode that will trigger the kernel module to return several addresses. One of which can be used to calculate the dynamic base address of the module for further exploitation. The NETGEARNighthawk AC3200 is a tri-band wireless router from NETGEAR. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. KCodes NetUSB is prone to an information-disclosure vulnerability. KCodes NetUSB.ko versions 1.0.2.66 and 1.0.2.69 are vulnerable; other versions may also be affected. KCodes NetUSB.ko is a Linux kernel module that provides USB services through IP provided by Taiwan KCodes Company

Genie Access WIP3BVAF WISH IP 3MP IR Auto Focus Bullet Camera devices through 3.x are vulnerable to directory traversal via the web interface, as demonstrated by reading /etc/shadow. NOTE: this product is discontinued, and its final firmware version has this vulnerability (4.x versions exist only for other Genie Access products). The vulnerability stems from a network system or product that fails to properly filter resources or special elements in file paths. An attacker could exploit this vulnerability to access locations outside of restricted directories

An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices. An ability exists for an unauthenticated user to browse a confidential ui/1.0.99.187766/dynamic/js/setup.js.localized file on the router's webserver, allowing for an attacker to identify possible passwords that the system uses to set the default guest network password. An attacker can use this list of 30 words along with a random 2 digit number to brute force their access onto a router's guest network. Linksys WRT1900ACS The device contains vulnerabilities related to certificate and password management.Information may be obtained. Linksys WRT1900ACS is a wireless router from Linksys. A security vulnerability exists in Linksys WRT1900ACS version 1.0.3.187766

An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-\) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device. Actiontec T2200H Devices have vulnerabilities related to authorization, permissions, and access control.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. The ActiontecElectronicsT2200H is a modem from Actiontec Electronics of the United States. A security vulnerability exists in the ActiontecElectronicsT2200HT2200H-31.128L.08 release

VVX products using UCS software version 5.9.2 and earlier with Better Together over Ethernet Connector (BToE) application version 3.9.1 and earlier provides insufficient authentication between the BToE application and the BToE component, resulting in leakage of sensitive information. Polycom UCS software is prone to an information-disclosure vulnerability. An attacker can exploit this issue to obtain sensitive information that may aid in further attacks. Polycom UCS software versions prior to 5.9.2 are vulnerable

Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff. Linux Kernel is prone to a remote integer-overflow vulnerability. ========================================================================== Kernel Live Patch Security Notice 0058-1 October 22, 2019 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu: | Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 18.04 LTS | 4.15.0 | amd64 | aws | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | oem | | Ubuntu 18.04 LTS | 5.0.0 | amd64 | azure | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | aws | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | azure | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | lowlatency | Summary: Several security issues were fixed in the kernel. (CVE-2016-10905) It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. (CVE-2018-20856) It was discovered that the USB gadget Midi driver in the Linux kernel contained a double-free vulnerability when handling certain error conditions. (CVE-2018-20961) It was discovered that the XFS file system in the Linux kernel did not properly handle mount failures in some situations. (CVE-2018-20976) It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. (CVE-2018-21008) It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). (CVE-2019-0136) It was discovered that the Linux kernel on ARM processors allowed a tracing process to modify a syscall after a seccomp decision had been made on that syscall. (CVE-2019-2181) It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. (CVE-2019-3846) It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. (CVE-2019-10126) It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. (CVE-2019-11478) It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833) It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. (CVE-2019-12614) It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. (CVE-2019-14283) It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. (CVE-2019-14284) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14814) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14815) Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14816) Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. (CVE-2019-14821) Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. (CVE-2019-14835) Update instructions: The problem can be corrected by updating your livepatches to the following versions: | Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-148.174 | 58.1 | lowlatency, generic | | 4.4.0-148.174~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-150.176 | 58.1 | generic, lowlatency | | 4.4.0-150.176~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-151.178 | 58.1 | lowlatency, generic | | 4.4.0-151.178~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-154.181 | 58.1 | lowlatency, generic | | 4.4.0-154.181~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-157.185 | 58.1 | lowlatency, generic | | 4.4.0-157.185~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-159.187 | 58.1 | lowlatency, generic | | 4.4.0-159.187~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-161.189 | 58.1 | lowlatency, generic | | 4.4.0-161.189~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-164.192 | 58.1 | lowlatency, generic | | 4.4.0-164.192~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-165.193 | 58.1 | generic, lowlatency | | 4.4.0-1083.93 | 58.1 | aws | | 4.4.0-1084.94 | 58.1 | aws | | 4.4.0-1085.96 | 58.1 | aws | | 4.4.0-1087.98 | 58.1 | aws | | 4.4.0-1088.99 | 58.1 | aws | | 4.4.0-1090.101 | 58.1 | aws | | 4.4.0-1092.103 | 58.1 | aws | | 4.4.0-1094.105 | 58.1 | aws | | 4.15.0-50.54 | 58.1 | generic, lowlatency | | 4.15.0-50.54~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-51.55 | 58.1 | generic, lowlatency | | 4.15.0-51.55~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-52.56 | 58.1 | lowlatency, generic | | 4.15.0-52.56~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-54.58 | 58.1 | generic, lowlatency | | 4.15.0-54.58~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-55.60 | 58.1 | generic, lowlatency | | 4.15.0-58.64 | 58.1 | generic, lowlatency | | 4.15.0-58.64~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-60.67 | 58.1 | lowlatency, generic | | 4.15.0-60.67~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-62.69 | 58.1 | generic, lowlatency | | 4.15.0-62.69~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-64.73 | 58.1 | generic, lowlatency | | 4.15.0-64.73~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-65.74 | 58.1 | lowlatency, generic | | 4.15.0-1038.43 | 58.1 | oem | | 4.15.0-1039.41 | 58.1 | aws | | 4.15.0-1039.44 | 58.1 | oem | | 4.15.0-1040.42 | 58.1 | aws | | 4.15.0-1041.43 | 58.1 | aws | | 4.15.0-1043.45 | 58.1 | aws | | 4.15.0-1043.48 | 58.1 | oem | | 4.15.0-1044.46 | 58.1 | aws | | 4.15.0-1045.47 | 58.1 | aws | | 4.15.0-1045.50 | 58.1 | oem | | 4.15.0-1047.49 | 58.1 | aws | | 4.15.0-1047.51 | 58.1 | azure | | 4.15.0-1048.50 | 58.1 | aws | | 4.15.0-1049.54 | 58.1 | azure | | 4.15.0-1050.52 | 58.1 | aws | | 4.15.0-1050.55 | 58.1 | azure | | 4.15.0-1050.57 | 58.1 | oem | | 4.15.0-1051.53 | 58.1 | aws | | 4.15.0-1051.56 | 58.1 | azure | | 4.15.0-1052.57 | 58.1 | azure | | 4.15.0-1055.60 | 58.1 | azure | | 4.15.0-1056.61 | 58.1 | azure | | 4.15.0-1056.65 | 58.1 | oem | | 4.15.0-1057.62 | 58.1 | azure | | 4.15.0-1057.66 | 58.1 | oem | | 4.15.0-1059.64 | 58.1 | azure | | 5.0.0-1014.14~18.04.1 | 58.1 | azure | | 5.0.0-1016.17~18.04.1 | 58.1 | azure | | 5.0.0-1018.19~18.04.1 | 58.1 | azure | | 5.0.0-1020.21~18.04.1 | 58.1 | azure | Support Information: Kernels older than the levels listed below do not receive livepatch updates. Please upgrade your kernel as soon as possible. | Series | Version | Flavors | |------------------+------------------+--------------------------| | Ubuntu 18.04 LTS | 4.15.0-1039 | aws | | Ubuntu 16.04 LTS | 4.4.0-1083 | aws | | Ubuntu 18.04 LTS | 5.0.0-1000 | azure | | Ubuntu 16.04 LTS | 4.15.0-1047 | azure | | Ubuntu 18.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 16.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 14.04 LTS | 4.4.0-148 | generic lowlatency | | Ubuntu 18.04 LTS | 4.15.0-1038 | oem | | Ubuntu 16.04 LTS | 4.4.0-148 | generic lowlatency | References: CVE-2016-10905, CVE-2018-20856, CVE-2018-20961, CVE-2018-20976, CVE-2018-21008, CVE-2019-0136, CVE-2019-2054, CVE-2019-2181, CVE-2019-3846, CVE-2019-10126, CVE-2019-10207, CVE-2019-11477, CVE-2019-11478, CVE-2019-11833, CVE-2019-12614, CVE-2019-14283, CVE-2019-14284, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835 -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce . 7) - x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Bug Fix(es): * update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1711010) 4. (CVE-2019-11477) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: linux-image-5.0.0-1008-aws 5.0.0-1008.8 linux-image-5.0.0-1008-gcp 5.0.0-1008.8 linux-image-5.0.0-1008-kvm 5.0.0-1008.8 linux-image-5.0.0-1010-raspi2 5.0.0-1010.10 linux-image-5.0.0-1014-snapdragon 5.0.0-1014.14 linux-image-5.0.0-17-generic 5.0.0-17.18 linux-image-5.0.0-17-generic-lpae 5.0.0-17.18 linux-image-5.0.0-17-lowlatency 5.0.0-17.18 linux-image-aws 5.0.0.1008.8 linux-image-gcp 5.0.0.1008.8 linux-image-generic 5.0.0.17.18 linux-image-generic-lpae 5.0.0.17.18 linux-image-gke 5.0.0.1008.8 linux-image-kvm 5.0.0.1008.8 linux-image-lowlatency 5.0.0.17.18 linux-image-raspi2 5.0.0.1010.7 linux-image-snapdragon 5.0.0.1014.7 linux-image-virtual 5.0.0.17.18 Ubuntu 18.10: linux-image-4.18.0-1013-gcp 4.18.0-1013.14 linux-image-4.18.0-1014-kvm 4.18.0-1014.14 linux-image-4.18.0-1016-raspi2 4.18.0-1016.18 linux-image-4.18.0-1018-aws 4.18.0-1018.20 linux-image-4.18.0-1020-azure 4.18.0-1020.20 linux-image-4.18.0-22-generic 4.18.0-22.23 linux-image-4.18.0-22-generic-lpae 4.18.0-22.23 linux-image-4.18.0-22-lowlatency 4.18.0-22.23 linux-image-4.18.0-22-snapdragon 4.18.0-22.23 linux-image-aws 4.18.0.1018.18 linux-image-azure 4.18.0.1020.21 linux-image-gcp 4.18.0.1013.13 linux-image-generic 4.18.0.22.23 linux-image-generic-lpae 4.18.0.22.23 linux-image-gke 4.18.0.1013.13 linux-image-kvm 4.18.0.1014.14 linux-image-lowlatency 4.18.0.22.23 linux-image-raspi2 4.18.0.1016.13 linux-image-snapdragon 4.18.0.22.23 linux-image-virtual 4.18.0.22.23 Ubuntu 18.04 LTS: linux-image-4.15.0-1015-oracle 4.15.0-1015.17 linux-image-4.15.0-1034-gcp 4.15.0-1034.36 linux-image-4.15.0-1036-kvm 4.15.0-1036.36 linux-image-4.15.0-1038-raspi2 4.15.0-1038.40 linux-image-4.15.0-1041-aws 4.15.0-1041.43 linux-image-4.15.0-1043-oem 4.15.0-1043.48 linux-image-4.15.0-1055-snapdragon 4.15.0-1055.59 linux-image-4.15.0-52-generic 4.15.0-52.56 linux-image-4.15.0-52-generic-lpae 4.15.0-52.56 linux-image-4.15.0-52-lowlatency 4.15.0-52.56 linux-image-4.18.0-1020-azure 4.18.0-1020.20~18.04.1 linux-image-4.18.0-22-generic 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-generic-lpae 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-lowlatency 4.18.0-22.23~18.04.1 linux-image-4.18.0-22-snapdragon 4.18.0-22.23~18.04.1 linux-image-aws 4.15.0.1041.40 linux-image-azure 4.18.0.1020.19 linux-image-gcp 4.15.0.1034.36 linux-image-generic 4.15.0.52.54 linux-image-generic-hwe-18.04 4.18.0.22.72 linux-image-generic-lpae 4.15.0.52.54 linux-image-generic-lpae-hwe-18.04 4.18.0.22.72 linux-image-kvm 4.15.0.1036.36 linux-image-lowlatency 4.15.0.52.54 linux-image-lowlatency-hwe-18.04 4.18.0.22.72 linux-image-oem 4.15.0.1043.47 linux-image-oracle 4.15.0.1015.18 linux-image-raspi2 4.15.0.1038.36 linux-image-snapdragon 4.15.0.1055.58 linux-image-snapdragon-hwe-18.04 4.18.0.22.72 linux-image-virtual 4.15.0.52.54 linux-image-virtual-hwe-18.04 4.18.0.22.72 Ubuntu 16.04 LTS: linux-image-4.15.0-1015-oracle 4.15.0-1015.17~16.04.1 linux-image-4.15.0-1034-gcp 4.15.0-1034.36~16.04.1 linux-image-4.15.0-1041-aws 4.15.0-1041.43~16.04.1 linux-image-4.15.0-1047-azure 4.15.0-1047.51 linux-image-4.15.0-52-generic 4.15.0-52.56~16.04.1 linux-image-4.15.0-52-generic-lpae 4.15.0-52.56~16.04.1 linux-image-4.15.0-52-lowlatency 4.15.0-52.56~16.04.1 linux-image-4.4.0-1048-kvm 4.4.0-1048.55 linux-image-4.4.0-1085-aws 4.4.0-1085.96 linux-image-4.4.0-1111-raspi2 4.4.0-1111.120 linux-image-4.4.0-1115-snapdragon 4.4.0-1115.121 linux-image-4.4.0-151-generic 4.4.0-151.178 linux-image-4.4.0-151-generic-lpae 4.4.0-151.178 linux-image-4.4.0-151-lowlatency 4.4.0-151.178 linux-image-4.4.0-151-powerpc-e500mc 4.4.0-151.178 linux-image-4.4.0-151-powerpc-smp 4.4.0-151.178 linux-image-4.4.0-151-powerpc64-emb 4.4.0-151.178 linux-image-4.4.0-151-powerpc64-smp 4.4.0-151.178 linux-image-aws 4.4.0.1085.88 linux-image-aws-hwe 4.15.0.1041.41 linux-image-azure 4.15.0.1047.51 linux-image-gcp 4.15.0.1034.48 linux-image-generic 4.4.0.151.159 linux-image-generic-hwe-16.04 4.15.0.52.73 linux-image-generic-lpae 4.4.0.151.159 linux-image-generic-lpae-hwe-16.04 4.15.0.52.73 linux-image-gke 4.15.0.1034.48 linux-image-kvm 4.4.0.1048.48 linux-image-lowlatency 4.4.0.151.159 linux-image-lowlatency-hwe-16.04 4.15.0.52.73 linux-image-oem 4.15.0.52.73 linux-image-oracle 4.15.0.1015.9 linux-image-powerpc-e500mc 4.4.0.151.159 linux-image-powerpc-smp 4.4.0.151.159 linux-image-powerpc64-emb 4.4.0.151.159 linux-image-powerpc64-smp 4.4.0.151.159 linux-image-raspi2 4.4.0.1111.111 linux-image-snapdragon 4.4.0.1115.107 linux-image-virtual 4.4.0.151.159 linux-image-virtual-hwe-16.04 4.15.0.52.73 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:1488-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1488 Issue date: 2019-06-17 CVE Names: CVE-2019-3896 CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS). (CVE-2019-11477) * kernel: Double free in lib/idr.c (CVE-2019-3896) * Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478) * Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * MDS mitigations not enabled on Intel Skylake CPUs (BZ#1710081) * RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1710121) * [RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1710517) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1694812 - CVE-2019-3896 kernel: Double free in lib/idr.c 1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service 1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service 1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: kernel-2.6.32-754.15.3.el6.src.rpm i386: kernel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-devel-2.6.32-754.15.3.el6.i686.rpm kernel-headers-2.6.32-754.15.3.el6.i686.rpm perf-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm noarch: kernel-abi-whitelists-2.6.32-754.15.3.el6.noarch.rpm kernel-doc-2.6.32-754.15.3.el6.noarch.rpm kernel-firmware-2.6.32-754.15.3.el6.noarch.rpm x86_64: kernel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm kernel-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-headers-2.6.32-754.15.3.el6.x86_64.rpm perf-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm x86_64: kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: kernel-2.6.32-754.15.3.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-754.15.3.el6.noarch.rpm kernel-doc-2.6.32-754.15.3.el6.noarch.rpm kernel-firmware-2.6.32-754.15.3.el6.noarch.rpm x86_64: kernel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm kernel-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-headers-2.6.32-754.15.3.el6.x86_64.rpm perf-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: kernel-2.6.32-754.15.3.el6.src.rpm i386: kernel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-devel-2.6.32-754.15.3.el6.i686.rpm kernel-headers-2.6.32-754.15.3.el6.i686.rpm perf-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm noarch: kernel-abi-whitelists-2.6.32-754.15.3.el6.noarch.rpm kernel-doc-2.6.32-754.15.3.el6.noarch.rpm kernel-firmware-2.6.32-754.15.3.el6.noarch.rpm ppc64: kernel-2.6.32-754.15.3.el6.ppc64.rpm kernel-bootwrapper-2.6.32-754.15.3.el6.ppc64.rpm kernel-debug-2.6.32-754.15.3.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm kernel-debug-devel-2.6.32-754.15.3.el6.ppc64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-754.15.3.el6.ppc64.rpm kernel-devel-2.6.32-754.15.3.el6.ppc64.rpm kernel-headers-2.6.32-754.15.3.el6.ppc64.rpm perf-2.6.32-754.15.3.el6.ppc64.rpm perf-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm s390x: kernel-2.6.32-754.15.3.el6.s390x.rpm kernel-debug-2.6.32-754.15.3.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.s390x.rpm kernel-debug-devel-2.6.32-754.15.3.el6.s390x.rpm kernel-debuginfo-2.6.32-754.15.3.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-754.15.3.el6.s390x.rpm kernel-devel-2.6.32-754.15.3.el6.s390x.rpm kernel-headers-2.6.32-754.15.3.el6.s390x.rpm kernel-kdump-2.6.32-754.15.3.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-754.15.3.el6.s390x.rpm kernel-kdump-devel-2.6.32-754.15.3.el6.s390x.rpm perf-2.6.32-754.15.3.el6.s390x.rpm perf-debuginfo-2.6.32-754.15.3.el6.s390x.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.s390x.rpm x86_64: kernel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm kernel-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-headers-2.6.32-754.15.3.el6.x86_64.rpm perf-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm ppc64: kernel-debug-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-754.15.3.el6.ppc64.rpm perf-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm python-perf-2.6.32-754.15.3.el6.ppc64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.ppc64.rpm s390x: kernel-debug-debuginfo-2.6.32-754.15.3.el6.s390x.rpm kernel-debuginfo-2.6.32-754.15.3.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-754.15.3.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-754.15.3.el6.s390x.rpm perf-debuginfo-2.6.32-754.15.3.el6.s390x.rpm python-perf-2.6.32-754.15.3.el6.s390x.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.s390x.rpm x86_64: kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: kernel-2.6.32-754.15.3.el6.src.rpm i386: kernel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-devel-2.6.32-754.15.3.el6.i686.rpm kernel-headers-2.6.32-754.15.3.el6.i686.rpm perf-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm noarch: kernel-abi-whitelists-2.6.32-754.15.3.el6.noarch.rpm kernel-doc-2.6.32-754.15.3.el6.noarch.rpm kernel-firmware-2.6.32-754.15.3.el6.noarch.rpm x86_64: kernel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.15.3.el6.i686.rpm kernel-debug-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm kernel-devel-2.6.32-754.15.3.el6.x86_64.rpm kernel-headers-2.6.32-754.15.3.el6.x86_64.rpm perf-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: kernel-debug-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-2.6.32-754.15.3.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.15.3.el6.i686.rpm perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm python-perf-2.6.32-754.15.3.el6.i686.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.i686.rpm x86_64: kernel-debug-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.15.3.el6.x86_64.rpm perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm python-perf-2.6.32-754.15.3.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.15.3.el6.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-3896 https://access.redhat.com/security/cve/CVE-2019-11477 https://access.redhat.com/security/cve/CVE-2019-11478 https://access.redhat.com/security/cve/CVE-2019-11479 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/tcpsack 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXQfbBdzjgjWX9erEAQjjiw//QtCd50n/kyijAWgyi02UAPD+QrPWRv6a gLSESiQGCl7YvWgt96eI5DANREmFMWQ8wB0LRku4KJ4tutBdTcyouWrHgHEYhXLB 24ZBi8HB/L9EhxKoQlHlY68ekZzbOcjqZhrL5K2xUnoVTJDo/+d+vtJgOIlrV/PC aXxRL5nez5Y8pjCiwqm37RP7OUnn6daLtqcu42DR9XovXqORrfJVo43+5HR0drLA ZB2B0ERUU+iFKpS6p9qIgfMLR9KRlMikeI+NRU/1JBjEDT5C4uT4fqULjM4a4QcR 4Cm+wN6ku7CTK8l+1RAKSAn12KMjHUfMhWT1X0XFTFl3lFifL6o6+5D0OVSM68xL k+E8pmoilN1nFk49Z9uLDbCJogLbPdgSOZohiuYLBfUE4IUy0OiCodmKRlQBxWTK tYBMbUQ1stywEGngsFAXnF7BIeC346+uvMT83TlfbhV+TNIFARjwx9ySNrV7hLes enTzE250yv7LaZ0tXGKhoPXfLif7nFFVNzupV1PM3uHDCjLYLRq5JQcd1IWCrBS0 IF5A/kp1X9zV8lO4fghj3aSXA7HwQphRBEJ4FkZSu34eqUX5rrC96X5T/8T9McOK iOKT/z03WI1mSBJUrU/x7N2v44mXr0kropqd/Yfqf6KQDJWW3aXkJJWxNMgBqiYS l+p3rcEBzDA=NzJu -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . # Advisory ###### ID: NFLX-2019-001 ###### Title: Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service vulnerabilities ###### Release Date: 2019-06-17 ###### Severity: Critical ### Overview: Netflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels. The vulnerabilities specifically relate to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities. The most serious, dubbed _“SACK Panic_,” allows a remotely-triggered kernel panic on recent Linux kernels. There are patches that address most of these vulnerabilities. If patches can not be applied, certain mitigations will be effective. We recommend that affected parties enact one of those described below, based on their environment. __Fix:__ Apply the patch [PATCH_net_1_4.patch](2019-001/PATCH_net_1_4.patch). Additionally, versions of the Linux kernel up to, and including, 4.14 require a second patch [PATCH_net_1a.patch](2019-001/PATCH_net_1a.patch). __Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). __Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 2: [CVE-2019-11478](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478): SACK Slowness (Linux < 4.15) or Excess Resource Usage (all Linux versions) __Description:__ It is possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. On Linux kernels prior to 4.15, an attacker may be able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. __Fix:__ Apply the patch [PATCH_net_2_4.patch](2019-001/PATCH_net_2_4.patch) __Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). __Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 3: [CVE-2019-5599](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5599): SACK Slowness (FreeBSD 12 using the RACK TCP Stack) __Description:__ It is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. __Workaround #1:__ Apply the patch [split_limit.patch](2019-001/split_limit.patch) and set the `net.inet.tcp.rack.split_limit` sysctl to a reasonable value to limit the size of the SACK table. __Workaround #2:__ Temporarily disable the RACK TCP stack. (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 4: [CVE-2019-11479](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11479): Excess Resource Consumption Due to Low MSS Values (all Linux versions) __Description:__ An attacker can force the Linux kernel to segment its responses into multiple TCP segments, each of which contains only 8 bytes of data. This drastically increases the bandwidth required to deliver the same amount of data. Further, it consumes additional resources (CPU and NIC processing power). This attack requires continued effort from the attacker and the impacts will end shortly after the attacker stops sending traffic. __Fix:__ Two patches [PATCH_net_3_4.patch](2019-001/PATCH_net_3_4.patch) and [PATCH_net_4_4.patch](2019-001/PATCH_net_4_4.patch) add a sysctl which enforces a minimum MSS, set by the `net.ipv4.tcp_min_snd_mss` sysctl. This lets an administrator enforce a minimum MSS appropriate for their applications. __Workaround:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). ### Note: Good system and application coding and configuration practices (limiting write buffers to the necessary level, monitoring connection memory consumption via SO_MEMINFO, and aggressively closing misbehaving connections) can help to limit the impact of attacks against these kinds of vulnerabilities. ## Acknowledgments: Originally reported by Jonathan Looney. We thank Eric Dumazet for providing Linux fixes and support. We thank Bruce Curtis for providing the Linux filters. We thank Jonathan Lemon and Alexey Kodanev for helping to improve the Linux patches. We gratefully acknowledge the assistance of Tyler Hicks in testing fixes, refining the information about vulnerable versions, and providing assistance during the disclosure process

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363. Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels. Linux Kernel is prone to a denial-of-service vulnerability. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. A successful exploit could cause the targeted system to crash, resulting in a DoS condition. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. Kernel.org has confirmed the vulnerability and released software updates. 7.4) - ppc64, ppc64le, x86_64 3. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:1484-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1484 Issue date: 2019-06-17 CVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.3) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.3) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.3) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.3) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.3) - noarch, x86_64 3. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS). (CVE-2019-11477) * Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478) * Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * THP: Race between MADV_DONTNEED and NUMA hinting node migration code (BZ#1698104) * [RHEL7] md_clear flag missing from /proc/cpuinfo on late microcode update (BZ#1712990) * [RHEL7] MDS mitigations are not enabled after double microcode update (BZ#1712995) * WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:90 __static_key_slow_dec+0xa6/0xb0 (BZ#1713001) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service 1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service 1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.3): Source: kernel-3.10.0-514.66.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.66.2.el7.noarch.rpm kernel-doc-3.10.0-514.66.2.el7.noarch.rpm x86_64: kernel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-headers-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.66.2.el7.x86_64.rpm perf-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.3): Source: kernel-3.10.0-514.66.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.66.2.el7.noarch.rpm kernel-doc-3.10.0-514.66.2.el7.noarch.rpm ppc64le: kernel-3.10.0-514.66.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debug-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.66.2.el7.ppc64le.rpm kernel-devel-3.10.0-514.66.2.el7.ppc64le.rpm kernel-headers-3.10.0-514.66.2.el7.ppc64le.rpm kernel-tools-3.10.0-514.66.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-514.66.2.el7.ppc64le.rpm perf-3.10.0-514.66.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm python-perf-3.10.0-514.66.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm x86_64: kernel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-headers-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.66.2.el7.x86_64.rpm perf-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.3): Source: kernel-3.10.0-514.66.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.66.2.el7.noarch.rpm kernel-doc-3.10.0-514.66.2.el7.noarch.rpm x86_64: kernel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-devel-3.10.0-514.66.2.el7.x86_64.rpm kernel-headers-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.66.2.el7.x86_64.rpm perf-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.3): x86_64: kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.3): ppc64le: kernel-debug-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.66.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-514.66.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.3): x86_64: kernel-debug-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.66.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.66.2.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-11477 https://access.redhat.com/security/cve/CVE-2019-11478 https://access.redhat.com/security/cve/CVE-2019-11479 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/tcpsack 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXQfsINzjgjWX9erEAQjaUQ/8C6tiqftF16m5kCHgGT8J4hTBwf13ddVv nS9rspU7yqCtzQIJGyw07Dm4dnCBYKf4WH1jL7522Wrjdk23B4PWDkUm9JHvSjeJ dgT48tgCI9uIqtg1S6pIeEo78UMjKdJbuK4Zh8+v2udHAXrrTHd39/d+vQM5Ry+/ RgYRJFuzuv4Ed5ztARI7VyHHScQl8aDwxm4JZ1gRlDl80kTSANRx4pt5ZeHDZ+Uk izWZdpCSYo9aZEW1MZLLKdKyNatC5xvWo/j2HPoDYhpUIz+NALsa8kRtbzdcngRr L8jAhXGjtFHiQjGPH2u08Wr1K4KF8VRi3xYV+BGELGoG9AFbDaRY44khdRU4hTtp RrdCgeeeP+PhiYfw6jUeh77AfSndYTsEpt+HM1krZ2Zn18EnbFIkBA6jTx22WtB7 cEvHS4cZ09EexivrBNWuHiV8WlUsMRC/rMEkXfk/Z3gdntHaPoKMnubt8O6ULLzG 7848ptUHmRHN1lqi2ey+r2Itz7IVwq9xWB0+ls4thnJQxqcTUNM7YI0UQW0v3q8p pFkUbB2LlnZYcsniIR5gMiYZc7xfMidPKzWTUAi22BaifsBWMPX6gInszsV53rRM xTQfgYcClS0Dg7Hj2kLwKpwGm1IA8g65ljO1NooaAp5tlaUcO0TyZUDrIdWZ7M2M Htgga2C1aeg\xa3py -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . CVE-2019-3846, CVE-2019-10126 huangwen reported multiple buffer overflows in the Marvell wifi (mwifiex) driver, which a local user could use to cause denial of service or the execution of arbitrary code. CVE-2019-5489 Daniel Gruss, Erik Kraft, Trishita Tiwari, Michael Schwarz, Ari Trachtenberg, Jason Hennessey, Alex Ionescu, and Anders Fogh discovered that local users could use the mincore() system call to obtain sensitive information from other processes that access the same memory-mapped file. This update introduces a new sysctl value to control the minimal MSS (net.ipv4.tcp_min_snd_mss), which by default uses the formerly hard- coded value of 48. We recommend raising this to 536 unless you know that your network requires a lower value. CVE-2019-11486 Jann Horn of Google reported numerous race conditions in the Siemens R3964 line discipline. This module has therefore been disabled. CVE-2019-11599 Jann Horn of Google reported a race condition in the core dump implementation which could lead to a use-after-free. CVE-2019-11815 It was discovered that a use-after-free in the Reliable Datagram Sockets protocol could result in denial of service and potentially privilege escalation. This protocol module (rds) is not auto- loaded on Debian systems, so this issue only affects systems where it is explicitly loaded. CVE-2019-11833 It was discovered that the ext4 filesystem implementation writes uninitialised data from kernel memory to new extent blocks. A local user able to write to an ext4 filesystem and then read the filesystem image, for example using a removable drive, might be able to use this to obtain sensitive information. CVE-2019-11884 It was discovered that the Bluetooth HIDP implementation did not ensure that new connection names were null-terminated. A local user with CAP_NET_ADMIN capability might be able to use this to obtain sensitive information from the kernel stack. For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAl0H04lfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0Tszw//R1zmUfrItTVMKsH3SlhMG/Nyd1efD/MaYwK/MXHv02BH56G3Th/W1uxh MEjyYTs7gE/UNyx6mr90G/BvymKNCqMEk5ooT7+xXcIgfBi+qvQW/YoBSOFi+Gai 58ofw0En+OQ4Fs1J95XRFjgegBitnsBumMxDcn2adKsbr7s8mKDaesENuXGe7sam Da8T6b0akCWK1i85JsQMG3OI661EdjosDHFHJyCVo8L1q3guYG11GPVlT/TI1ErN 68dVqLWq01Vn5TjKaUr6xeAHDMma+fKaHaitnxhmt06AcH/zQo4wDocQx8DOEWpE 6xBcCyABkKQ84iTKrFZKcnBDCwHaEcq6UytqIbkXIGpA0jRgaLzCNEOWt9GuENmt YoaxXwIi9RSMe8flyrWURGyWLrfJkh/Bk/P6WlpOCMSJmB9uXTnPxjMpfoMNqQjs BljbGqeN06dvFAq1fMzlqykbeHzDksHZ4pZizMNYqCNdQs3erm0rdyS55mN60o5/ SDIur1KokXi60zTwDPne1tyh00EP0liWyvh79u2/kaIazjbtTtoVYlyF5Wm/pu/r E46Mpv8pI7YIDNUVrtM/vLznqq+4BcVaqLBIVeMf+XAfqxJ5IrZ4ejaPvlP7hi4+ NwCQrSCaGk2nwBZr6Xs0qYVTsLLY9jkg8FUWPdH4ZEOFcGaWi3A=dgfy -----END PGP SIGNATURE----- . 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Bug Fix(es): * [HPE 8.0 Bug] nvme drive power button does not turn off drive (BZ#1700288) * RHEL8.0 - hw csum failure seen in dmesg and console (using mlx5/mlx4/Mellanox) (BZ#1700289) * RHEL8.0 - vfio-ap: add subsystem to matrix device to avoid libudev failures (kvm) (BZ#1700290) * [FJ8.1 Bug]: Make Fujitsu Erratum 010001 patch work on A64FX v1r0 (BZ#1700901) * [FJ8.0 Bug]: Fujitsu A64FX processor errata - panic by unknown fault (BZ#1700902) * RHEL 8.0 Snapshot 4 - nvme create-ns command hangs after creating 20 namespaces on Bolt (NVMe) (BZ#1701140) * [Cavium/Marvell 8.0 qed] Fix qed_mcp_halt() and qed_mcp_resume() (backporting bug) (BZ#1704184) * [Intel 8.1 Bug] PBF: Base frequency display fix (BZ#1706739) * [RHEL8]read/write operation not permitted to /sys/kernel/debug/gcov/reset (BZ#1708100) * RHEL8.0 - ISST-LTE:pVM:fleetwood:LPM:raylp85:After lpm seeing the console logs on the the lpar at target side (BZ#1708102) * RHEL8.0 - Backport support for software count cache flush Spectre v2 mitigation (BZ#1708112) * [Regression] RHEL8.0 - System crashed with one stress-ng-mremap stressor on Boston (kvm host) (BZ#1708617) * [intel ice Rhel 8 RC1] ethtool -A ethx causes interfaces to go down (BZ#1709433) 4. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Bug Fix(es): * kernel-rt: update to the RHEL8.0.z batch#1 source tree (BZ#1704955) 4. 7) - aarch64, noarch, ppc64le 3. The most serious, dubbed _“SACK Panic_,” allows a remotely-triggered kernel panic on recent Linux kernels. There are patches that address most of these vulnerabilities. If patches can not be applied, certain mitigations will be effective. We recommend that affected parties enact one of those described below, based on their environment. ### Details: #### 1: [CVE-2019-11477](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11477): SACK Panic (Linux >= 2.6.29) __Description:__ A sequence of SACKs may be crafted such that one can trigger an integer overflow, leading to a kernel panic. __Fix:__ Apply the patch [PATCH_net_1_4.patch](2019-001/PATCH_net_1_4.patch). Additionally, versions of the Linux kernel up to, and including, 4.14 require a second patch [PATCH_net_1a.patch](2019-001/PATCH_net_1a.patch). __Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). __Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 2: [CVE-2019-11478](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478): SACK Slowness (Linux < 4.15) or Excess Resource Usage (all Linux versions) __Description:__ It is possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. On Linux kernels prior to 4.15, an attacker may be able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. __Fix:__ Apply the patch [PATCH_net_2_4.patch](2019-001/PATCH_net_2_4.patch) __Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). __Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 3: [CVE-2019-5599](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5599): SACK Slowness (FreeBSD 12 using the RACK TCP Stack) __Description:__ It is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. __Workaround #1:__ Apply the patch [split_limit.patch](2019-001/split_limit.patch) and set the `net.inet.tcp.rack.split_limit` sysctl to a reasonable value to limit the size of the SACK table. __Workaround #2:__ Temporarily disable the RACK TCP stack. (Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.) ### 4: [CVE-2019-11479](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11479): Excess Resource Consumption Due to Low MSS Values (all Linux versions) __Description:__ An attacker can force the Linux kernel to segment its responses into multiple TCP segments, each of which contains only 8 bytes of data. This drastically increases the bandwidth required to deliver the same amount of data. Further, it consumes additional resources (CPU and NIC processing power). This attack requires continued effort from the attacker and the impacts will end shortly after the attacker stops sending traffic. __Fix:__ Two patches [PATCH_net_3_4.patch](2019-001/PATCH_net_3_4.patch) and [PATCH_net_4_4.patch](2019-001/PATCH_net_4_4.patch) add a sysctl which enforces a minimum MSS, set by the `net.ipv4.tcp_min_snd_mss` sysctl. This lets an administrator enforce a minimum MSS appropriate for their applications. __Workaround:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). ### Note: Good system and application coding and configuration practices (limiting write buffers to the necessary level, monitoring connection memory consumption via SO_MEMINFO, and aggressively closing misbehaving connections) can help to limit the impact of attacks against these kinds of vulnerabilities. ## Acknowledgments: Originally reported by Jonathan Looney. We thank Eric Dumazet for providing Linux fixes and support. We thank Bruce Curtis for providing the Linux filters. We thank Jonathan Lemon and Alexey Kodanev for helping to improve the Linux patches. We gratefully acknowledge the assistance of Tyler Hicks in testing fixes, refining the information about vulnerable versions, and providing assistance during the disclosure process. 6.6) - x86_64 3. Bug Fix(es): * MDS mitigations not enabled on Intel Skylake CPUs (BZ#1713026) * [RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1713029) * RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1713044) 4

Schneider Electric Twidosuite is a programming software. Schneider Electric Twidosuite software has a dll hijacking vulnerability when processing xpr files. Attackers can use the vulnerability to load malicious dlls and execute malicious code

An exploitable arbitrary memory read vulnerability exists in the KCodes NetUSB.ko kernel module which enables the ReadySHARE Printer functionality of at least two NETGEAR Nighthawk Routers and potentially several other vendors/products. A specially crafted index value can cause an invalid memory read, resulting in a denial of service or remote information disclosure. An unauthenticated attacker can send a crafted packet on the local network to trigger this vulnerability. KCodes NetUSB.ko Kernel modules and NETGEAR Nighthawk The router contains an information disclosure vulnerability.Information is obtained and service operation is interrupted (DoS) There is a possibility of being put into a state. KCodes NetUSB is prone to a memory-corruption vulnerability. Attackers can exploit this issue to obtain sensitive information or crash the application resulting in a denial-of-service condition. KCodes NetUSB.ko versions 1.0.2.66 and 1.0.2.69 are vulnerable; other versions may also be affected. KCodes NetUSB.ko is a Linux kernel module that provides USB services through IP provided by Taiwan KCodes Company. KCodes NetUSB.ko versions 1.0.2.66 and 1.0.2.69 have an information disclosure vulnerability. The following products and versions are affected: NETGEAR Nighthawk AC3200 (R8000) using firmware version 1.0.4.2810.1.54 (11/7/18); NETGEAR Nighthawk AC3000 ( R7900)

Possible out of bounds write due to improper input validation while processing DO_ACS vendor command in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6574AU, QCA9377, QCA9379, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820A, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains an out-of-bounds vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. WLAN is one of the wireless LAN components. A buffer overflow vulnerability exists in WLANs in several Qualcomm products. The vulnerability stems from a network system or product that does not properly validate data boundaries when performing operations on memory, causing erroneous read and write operations to be performed on other associated memory locations. An attacker could exploit the vulnerability to cause a buffer overflow or heap overflow. The following products and versions are affected: Qualcomm MDM9150; MDM9206; MDM9607; MDM9640; MDM9650; MSM8996AU; QCA6174A; QCA6574AU; QCA9377; QCA9379; SD 450; SD 625; SD 636; SD 712; SD 710; SD 670; SD 820A; SD 845; SD 850; SD 855; SDA660;

The txrx stats req might be double freed in the pdev detach when the host driver is unloading in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ8064, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6574AU, QCA9377, QCA9379, QCA9558, QCA9880, QCA9886, QCA9980, QCS405, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains a double release vulnerability.Information may be obtained. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. WLAN is one of the wireless LAN components. An information disclosure vulnerability exists in WLANs in several Qualcomm products. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products

Failure to initialize the reserved memory which is sent to the firmware might lead to exposure of 1 byte of uninitialized kernel SKB memory to FW in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ4019, IPQ8064, IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS405, QCS605, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains an information disclosure vulnerability.Information may be obtained. Qualcomm MDM9206 and others are products of Qualcomm (Qualcomm). MDM9206 is a central processing unit (CPU) product. MDM9607 is a central processing unit (CPU) product. SDX20 is a modem. WLAN is one of the wireless local area network components. This vulnerability stems from configuration errors in network systems or products during operation. An unauthorized attacker could exploit the vulnerability to obtain sensitive information of the affected components. The following products and versions are affected: Qualcomm IPQ4019; IPQ8064; IPQ8074; MDM9150; MDM9206; MDM9607; MDM9640; MDM9650; SD 675; SD 712; SD 710; SD 670; SD 730; SD 820A; SD 835; SD 845; SD 850; SD 855; SDA660;

Lack of input validation in WLAN function can lead to potential heap overflow in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS405, QCS605, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The SDX20 is a modem. A buffer overflow vulnerability exists in the WLAN feature in several Qualcomm products. The vulnerability stems from a network system or product that does not properly validate data boundaries when performing operations on memory, causing erroneous read and write operations to be performed on other associated memory locations. An attacker could exploit the vulnerability to cause a buffer overflow or heap overflow

Use after issue in WLAN function due to multiple ACS scan requests at a time in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS605, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 675, SD 730, SD 820A, SD 835, SD 855, SDA660, SDX20, SDX24. plural Snapdragon The product contains a vulnerability related to the use of released memory.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. A resource management error vulnerability exists in the WLAN features in several Qualcomm products. The vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. There are currently no detailed details of the vulnerability provided. The following products and versions are affected: Qualcomm MDM9206; MDM9607; MDM9640; MDM9650; MSM8996AU; SD855; SDA660; SDX20; SDX24

Use after issue in WLAN function due to multiple ACS scan requests at a time in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8909W, QCA6574AU, SD 210/SD 212/SD 205, SD 615/16/SD 415, SD 625, SD 650/52, SD 820, SDX20. plural Snapdragon The product contains a vulnerability related to the use of released memory.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. QualcommMDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The SDX20 is a modem. A resource management error vulnerability exists in the WLAN features in several Qualcomm products. The vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. There are currently no detailed details of the vulnerability provided. The following products and versions are affected: Qualcomm MDM9150; MDM9206; MDM9607; MDM9640; MDM9650; MSM8909W; QCA6574AU; SD 210; SD 212; SD 205; SDX20

A buffer overflow can occur while processing an extscan hotlist event in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in MDM9206, MDM9607, MDM9640, MDM9650, MSM8909W, MSM8996AU, QCA9379, QCS605, SD 625, SD 636, SD 820, SD 820A, SD 835, SD 855, SDA660, SDM630, SDM660, SDX20. plural Snapdragon The product contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. WLAN is one of the wireless LAN components. A buffer overflow vulnerability exists in WLANs in several Qualcomm products. The vulnerability stems from a network system or product that does not properly validate data boundaries when performing operations on memory, causing erroneous read and write operations to be performed on other associated memory locations. An attacker could exploit the vulnerability to cause a buffer overflow or heap overflow. The following products and versions are affected: Qualcomm MDM9206; MDM9607; MDM9640; MDM9650; MSM8909W; MSM8996AU; QCA9379; QCS605;

Buffer overflow in WLAN function due to improper check of buffer size before copying in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS605, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820A, SD 855, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. A buffer overflow vulnerability exists in the WLAN feature in several Qualcomm products. The vulnerability stems from a network system or product that does not properly validate data boundaries when performing operations on memory, causing erroneous read and write operations to be performed on other associated memory locations. An attacker could exploit the vulnerability to cause a buffer overflow or heap overflow. The following products and versions are affected: Qualcomm MDM9150; MDM9206; MDM9607; MDM9640; MDM9650; MSM8996AU; QCS605; SD 625; ;SDM660;SDX20;SDX24

Buffer overflow in WLAN driver event handlers due to improper validation of array index in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS405, QCS605, SD 636, SD 675, SD 730, SD 820A, SD 835, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24. plural Snapdragon The product contains a vulnerability related to array index validation.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Qualcomm MDM9206 and other products are products of Qualcomm. The MDM9206 is a central processing unit (CPU) product. The MDM9607 is a central processing unit (CPU) product. The MDM9640 is a central processing unit (CPU) product. WLAN is one of the wireless LAN components. An input validation error vulnerability exists in WLANs in several Qualcomm products. The vulnerability stems from a network system or product that does not properly validate the input data. An exploit can exploit the vulnerability causing a buffer overflow in the WLAN driver event handler. The following products and versions are affected: Qualcomm MDM9206; MDM9607; MDM9640; MDM9650; MSM8996AU; QCS405; QCS605; SD 636;