ID

VAR-201906-1175

CVE

CVE-2019-11477

TITLE

Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels

DESCRIPTION

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. 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 Exists in an integer overflow vulnerability.Service operation interruption (DoS) It may be in a state. 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. ========================================================================== 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-2019-2181) 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-2019-14835) 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 . 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-2019-5489 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. CVE-2019-11479 Jonathan Looney reported that an attacker could force the Linux kernel to segment its responses into multiple TCP segments, each of which contains only 8 bytes of data, drastically increasing the bandwidth required to deliver the same amount of data. 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. 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. 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----- . ========================================================================= Ubuntu Security Notice USN-4017-2 June 17, 2019 linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: The system could be made to crash if it received specially crafted network traffic. (CVE-2019-11477) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: linux-image-3.13.0-171-generic 3.13.0-171.222 linux-image-3.13.0-171-generic-lpae 3.13.0-171.222 linux-image-3.13.0-171-lowlatency 3.13.0-171.222 linux-image-4.15.0-1047-azure 4.15.0-1047.51~14.04.1 linux-image-4.4.0-1046-aws 4.4.0-1046.50 linux-image-4.4.0-151-generic 4.4.0-151.178~14.04.1 linux-image-4.4.0-151-generic-lpae 4.4.0-151.178~14.04.1 linux-image-4.4.0-151-lowlatency 4.4.0-151.178~14.04.1 linux-image-aws 4.4.0.1046.47 linux-image-azure 4.15.0.1047.34 linux-image-generic 3.13.0.171.182 linux-image-generic-lpae 3.13.0.171.182 linux-image-generic-lpae-lts-xenial 4.4.0.151.133 linux-image-generic-lts-xenial 4.4.0.151.133 linux-image-lowlatency-lts-xenial 4.4.0.151.133 Ubuntu 12.04 ESM: linux-image-3.13.0-171-generic 3.13.0-171.222~12.04.1 linux-image-3.13.0-171-generic-lpae 3.13.0-171.222~12.04.1 linux-image-3.13.0-171-lowlatency 3.13.0-171.222~12.04.1 linux-image-3.2.0-141-generic 3.2.0-141.188 linux-image-generic 3.2.0.141.156 linux-image-generic-lpae-lts-trusty 3.13.0.171.159 linux-image-generic-lts-trusty 3.13.0.171.159 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2019:1482-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1482 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 7.5 Extended Update Support. 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 ComputeNode EUS (v. 7.5) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - ppc64, ppc64le, 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. 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 ComputeNode EUS (v. 7.5): Source: kernel-3.10.0-862.34.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-862.34.2.el7.noarch.rpm kernel-doc-3.10.0-862.34.2.el7.noarch.rpm x86_64: kernel-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.34.2.el7.x86_64.rpm kernel-devel-3.10.0-862.34.2.el7.x86_64.rpm kernel-headers-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.34.2.el7.x86_64.rpm perf-3.10.0-862.34.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm python-perf-3.10.0-862.34.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5): x86_64: kernel-debug-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.34.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.5): Source: kernel-3.10.0-862.34.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-862.34.2.el7.noarch.rpm kernel-doc-3.10.0-862.34.2.el7.noarch.rpm ppc64: kernel-3.10.0-862.34.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-862.34.2.el7.ppc64.rpm kernel-debug-3.10.0-862.34.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-862.34.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-862.34.2.el7.ppc64.rpm kernel-devel-3.10.0-862.34.2.el7.ppc64.rpm kernel-headers-3.10.0-862.34.2.el7.ppc64.rpm kernel-tools-3.10.0-862.34.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-862.34.2.el7.ppc64.rpm perf-3.10.0-862.34.2.el7.ppc64.rpm perf-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm python-perf-3.10.0-862.34.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm ppc64le: kernel-3.10.0-862.34.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debug-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.34.2.el7.ppc64le.rpm kernel-devel-3.10.0-862.34.2.el7.ppc64le.rpm kernel-headers-3.10.0-862.34.2.el7.ppc64le.rpm kernel-tools-3.10.0-862.34.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-862.34.2.el7.ppc64le.rpm perf-3.10.0-862.34.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm python-perf-3.10.0-862.34.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm s390x: kernel-3.10.0-862.34.2.el7.s390x.rpm kernel-debug-3.10.0-862.34.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-862.34.2.el7.s390x.rpm kernel-debug-devel-3.10.0-862.34.2.el7.s390x.rpm kernel-debuginfo-3.10.0-862.34.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-862.34.2.el7.s390x.rpm kernel-devel-3.10.0-862.34.2.el7.s390x.rpm kernel-headers-3.10.0-862.34.2.el7.s390x.rpm kernel-kdump-3.10.0-862.34.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-862.34.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-862.34.2.el7.s390x.rpm perf-3.10.0-862.34.2.el7.s390x.rpm perf-debuginfo-3.10.0-862.34.2.el7.s390x.rpm python-perf-3.10.0-862.34.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.s390x.rpm x86_64: kernel-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.34.2.el7.x86_64.rpm kernel-devel-3.10.0-862.34.2.el7.x86_64.rpm kernel-headers-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.34.2.el7.x86_64.rpm perf-3.10.0-862.34.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm python-perf-3.10.0-862.34.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.5): ppc64: kernel-debug-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-862.34.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-862.34.2.el7.ppc64.rpm perf-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.34.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-862.34.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.34.2.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.34.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.34.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.34.2.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 iQIVAwUBXQfk3NzjgjWX9erEAQiytA/+LYuWZPA+XAzTGUtoSanvsTMhe3fdVmEs uC08ljrlPeR/Wd6nDM6/kA31tXy0DuL23ocXTXoz+eBQNzpv7wAV3BNegLB+EbaF lalFLRhneQHOPqVQm8NRM/+aQoUSPZGroINcBCxC+RRDCnzgd1IYYOPJeq3N3che 3/o1whqn8af/uYrE49Lg+qimRFPIDkUg/r+pTv8M/cWdskrDlv3ir8Dn3rczrg9C /MjRxlqayPLN60RsdQO1MJPIq/5/4avHbmlqYGvzWyqdMYZckJWtJbRcCNg4MaII P8sx7pW1h6MdC23tGdqdk1VsgPl5ap1qYDjIJdHkp2wOeih6Lk1ezBViRuOfWpx1 Wy2EpmGRy8IUA/biIHedki48cfBHE2T3Bd7dE0V1HHWP5c9iZIov5OTG6dvy5OMV bQA5+BVrSdrOPKj6VDwrbcDWoeSR8O0eMghoj7o3aP6cPzAMmQ2xxj8G4hrZuP0P 1eVZrMPgE+N6Brd9k/o70Gw90Q7N2o8ONJFrz+gFdIGxI+m3dNGhne5hwxou1Q+k 5/O4S3Eu2afic3WNh6K3Zbk8K5rzfqFGdOFEGYw0/lZblRgr9scVQdfo4ohoxabf ojkr1xsbNIcSxHYBm9LRM4cMXblFr+yx+mYZsCA539F2DKID42Y89msdcjGhOUEL SkhJ47gvUQ4=+jJe -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

overflow

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Benjamin M. Romer

SOURCES

LAST UPDATE DATE

2026-02-26T23:14:14.685000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE