ID

VAR-201905-1248

CVE

CVE-2019-11091

TITLE

Multiple Intel Product Information Disclosure Vulnerabilities (CNVD-2019-22234)

DESCRIPTION

Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Intel Xeon Scalable Processors and so on are products of Intel Corporation of the United States. Intel XeonScalable Processors is a scalable server central processing unit (CPU). IntelXeonProcessorE7v4Family is a XeonE7 series server central processing unit (CPU). IntelXeonProcessorE5v4Family is a XeonE5 series server central processing unit (CPU). An information disclosure vulnerability exists in several Intel 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. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. The vulnerability is due to improper memory operations that could expose a side channel on the affected system. A successful exploit could be used to conduct further attacks. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. A third-party patch is also available. 7.4) - ppc64, ppc64le, x86_64 3. Description: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Once all virtual machines have shut down, start them again for this update to take effect. (CVE-2019-11091) * QEMU: device_tree: heap buffer overflow while loading device tree blob (CVE-2018-20815) * QEMU: rtl8139: integer overflow leads to buffer overflow (CVE-2018-17958) * QEMU: net: ignore packets with large size (CVE-2018-17963) * QEMU: scsi-generic: possible OOB access while handling inquiry request (CVE-2019-6501) * QEMU: slirp: information leakage in tcp_emu() due to uninitialized stack variables (CVE-2019-9824) 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. Additional Changes: This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Release Notes document linked to in the References section. Bugs fixed (https://bugzilla.redhat.com/): 1508708 - [data plane] Qemu-kvm core dumped when doing block-stream and block-job-cancel to a data disk with data-plane enabled 1526313 - Improve QEMU lock error info for hot-plugging same qcow2 image file twice in different target to VM 1531888 - Local VM and migrated VM on the same host can run with same RAW file as visual disk source while without shareable configured or lock manager enabled 1551486 - QEMU image locking needn't double open fd number (i.e. drop file-posix.c:s->lock_fd) 1585155 - QEMU core dumped when hotplug memory exceeding host hugepages and with discard-data=yes 1597482 - qemu crashed when disk enable the IOMMU 1598119 - "share-rw=on" does not work for luks format image 1603104 - Qemu Aborted (core dumped) for 'qemu-kvm: Failed to lock byte 100' when remote NFS or GlusterFS volume stopped during the block mirror(or block commit/stream) process 1607768 - qemu aborted when start guest with a big iothreads 1608226 - [virtual-network][mq] prompt warning "qemu-kvm: unable to start vhost net: 14: falling back on userspace virtio" when boot with win8+ guests with multi-queue 1610461 - High Host CPU load for Windows 10 Guests (Update 1803) when idle 1614302 - qemu-kvm: Could not find keytab file: /etc/qemu/krb5.tab: No such file or directory 1614610 - Guest quit with error when hotunplug cpu 1619778 - Ballooning is incompatible with vfio assigned devices, but not prevented 1620373 - Failed to do migration after hotplug and hotunplug the ivshmem device 1623986 - block-commit can't be used with -blockdev 1624009 - allow backing of pflash via -blockdev 1627272 - boot guest with q35+vIOMMU+ device assignment, qemu crash when return assigned network devices from vfio driver to ixgbe in guest 1628098 - [Intel 7.7 BUG][KVM][Crystal Ridge]object_get_canonical_path_component: assertion failed: (obj->parent != NULL) 1629056 - qemu NBD server failure with block status of dirty bitmaps 1629717 - qemu_ram_mmap: Assertion `is_power_of_2(align)' failed 1629720 - [Intel 7.6 BUG][Crystal Ridge] pc_dimm_get_free_addr: assertion failed: (QEMU_ALIGN_UP(address_space_start, align) == address_space_start) 1631052 - x-block-dirty-bitmap-merge into a disabled bitmap dest causes assert 1631227 - Qemu Core dump when quit vm that's in status "paused(io-error)" with data plane enabled 1631615 - Wrong werror default for -device drive=<node-name> 1631877 - qemu dirty bitmap merge fails to update count 1633150 - Cross migration from RHEL7.5 to RHEL7.6 fails with cpu flag stibp 1633536 - Qemu core dump when do migration after hot plugging a backend image with 'blockdev-add'(without the frontend) 1636712 - CVE-2018-17958 QEMU: rtl8139: integer overflow leads to buffer overflow 1636777 - CVE-2018-17963 QEMU: net: ignore packets with large size 1642551 - qemu-kvm-tools-rhev depends on libxkbcommon, but the RPM-level dependency is missing 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1648236 - QEMU doesn't expose rendernode option for egl-headless display type 1656913 - qcow2 cache is too small 1666336 - severe performance impact using encrypted Cinder volume (QEMU luks) 1666884 - persistent bitmaps prevent qcow2 image resize 1667320 - -blockdev: auto-read-only is ineffective for drivers on read-only whitelist 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1668160 - CVE-2019-6501 QEMU: scsi-generic: possible OOB access while handling inquiry request 1668956 - incremental backup bitmap API needs a finalized interface 1672010 - [RHEL7]Qemu coredump when remove a persistent bitmap after vm re-start(dataplane enabled) 1673080 - "An unknown error has occurred" when using cdrom to install the system with two blockdev disks.(when choose installation destination) 1673397 - [RHEL.7] qemu-kvm core dumped after hotplug the deleted disk with iothread parameter 1673402 - Qemu core dump when start guest with two disks using same drive 1676728 - RHEL77: Run iotests as part of build process 1677073 - Backport additional QEMU 4.0 Bitmap API changes to RHEL 7.7 1678515 - CVE-2019-9824 QEMU: slirp: information leakage in tcp_emu() due to uninitialized stack variables 1685989 - Add facility to use block jobs with backing images without write permission 1691009 - NBD pull mode incremental backup API needs a finalized interface 1691018 - Fix iotest 226 for local development builds 1691048 - Add qemu-img info support for querying bitmaps offline 1691563 - QEMU NBD Feature parity roundup (QEMU 3.1.0) 1692018 - qemu-img: Protocol error: simple reply when structured reply chunk was expected 1693101 - CVE-2018-20815 QEMU: device_tree: heap buffer overflow while loading device tree blob 1703916 - Qemu core dump when quit vm after forbidden to do backup with a read-only bitmap 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) 1714160 - Guest with 'reservations' for a disk start failed 6. In addition this update provides mitigations for the "TSX Asynchronous Abort" speculative side channel attack. Note that this will be the last security update for Xen in the oldstable distribution; upstream support for the 4.8.x branch ended by the end of December 2019. If you rely on security support for your Xen installation an update to the stable distribution (buster) is recommended. ========================================================================== Ubuntu Security Notice USN-3978-1 May 14, 2019 qemu update ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.04 - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM Summary: Several issues were addressed in QEMU. Software Description: - qemu: Machine emulator and virtualizer Details: Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12130) Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12127) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12126) Kurtis Miller discovered that a buffer overflow existed in QEMU when loading a device tree blob. A local attacker could use this to execute arbitrary code. (CVE-2018-20815) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2019-11091) It was discovered that a NULL pointer dereference existed in the sun4u power device implementation in QEMU. A local attacker could use this to cause a denial of service. This issue only affected Ubuntu 18.10 and Ubuntu 19.04. (CVE-2019-5008) William Bowling discovered that an information leak existed in the SLiRP networking implementation of QEMU. (CVE-2019-9824) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: qemu 1:3.1+dfsg-2ubuntu3.1 qemu-system-x86 1:3.1+dfsg-2ubuntu3.1 Ubuntu 18.10: qemu 1:2.12+dfsg-3ubuntu8.7 qemu-system-x86 1:2.12+dfsg-3ubuntu8.7 Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.13 qemu-system-x86 1:2.11+dfsg-1ubuntu7.13 Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.38 qemu-system-x86 1:2.5+dfsg-5ubuntu10.38 Ubuntu 14.04 ESM: qemu 2.0.0+dfsg-2ubuntu1.46 qemu-system-x86 2.0.0+dfsg-2ubuntu1.46 After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes. Relevant releases/architectures: RHV-M 4.2 - noarch 3. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libvirt security update Advisory ID: RHSA-2019:1180-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1180 Issue date: 2019-05-14 CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 ===================================================================== 1. Summary: An update for libvirt 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, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64 3. Description: The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems. Security Fix(es): * A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130) * Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126) * Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2019-11091) 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 After installing the updated packages, libvirtd will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: libvirt-0.10.2-64.el6_10.1.src.rpm i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: libvirt-0.10.2-64.el6_10.1.src.rpm x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: libvirt-0.10.2-64.el6_10.1.src.rpm i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm ppc64: libvirt-0.10.2-64.el6_10.1.ppc64.rpm libvirt-client-0.10.2-64.el6_10.1.ppc.rpm libvirt-client-0.10.2-64.el6_10.1.ppc64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.ppc.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.ppc64.rpm libvirt-devel-0.10.2-64.el6_10.1.ppc.rpm libvirt-devel-0.10.2-64.el6_10.1.ppc64.rpm libvirt-python-0.10.2-64.el6_10.1.ppc64.rpm s390x: libvirt-0.10.2-64.el6_10.1.s390x.rpm libvirt-client-0.10.2-64.el6_10.1.s390.rpm libvirt-client-0.10.2-64.el6_10.1.s390x.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.s390.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.s390x.rpm libvirt-devel-0.10.2-64.el6_10.1.s390.rpm libvirt-devel-0.10.2-64.el6_10.1.s390x.rpm libvirt-python-0.10.2-64.el6_10.1.s390x.rpm x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: libvirt-0.10.2-64.el6_10.1.src.rpm i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.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-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/vulnerabilities/mds https://access.redhat.com/security/updates/classification/#important 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 iQIVAwUBXNsJuNzjgjWX9erEAQhuig/7B0ZCV6Np07w9O5y2hyX9OYuOPTWWOuuj aR8ndZOC8FCgp630HSEB/Hi17XzCDCYRQusAKcfnSrDIPLJNbr2I0b3RxvXNiKu/ cfksAhrA6XtdcW4LXSSRvIQGNrBSFGiv1QCYie+ER8JzRCe8+0/K0soMOubg5ZUz 78TQeK87McXoGPAqlNrDW3h1EGpq6SJDSPJg3Q598L1di4s0HUHthV9HcjXYUlqV G2xP1mkq4P6iOmUEqQ45Kq6ntPhFPjaiR/vMz9Tj6B6Kmpb9/IxVpQ84dTideOG9 ad3O1ZPGHchITcKntYZ9IePeIhYoUFeNKccJ9J0h1JvQ7utWmS9j6zBgWmOaReb0 RbhFggIlHQ9Oxxv/jcEz9eU4n+VzGF+Dzv0lhnFNfE5HTer4YFRI+Fm58SkVb1hO 3+hIj1sMrIMm86MmCfB/MnmQeSCy8WJRyjUDkbMTAqN6xOAyDfW0h4DKw0YtS6ml Weubwvnad9ltJslFUh4XCvKNJmNtC3b1YVehE9LpTRcBwpHr26OBs3iDFvHIU5jh mi971Lw8++SZzaYaBEN2+Eop2Dhk2IdMKsFk75OQLdRY94FIZ3hvteOY32tKQBn8 +Xb+dfrSuoEnzSWULGH5LUxOYKik1SnpHphaCX+SBB3aClvCVOoxig7urLIM89Sq 71dvSxshwr0= =CE4I -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-4444-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso May 14, 2019 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux CVE ID : CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 Debian Bug : 928125 Multiple researchers have discovered vulnerabilities in the way the Intel processor designs have implemented speculative forwarding of data filled into temporary microarchitectural structures (buffers). This flaw could allow an attacker controlling an unprivileged process to read sensitive information, including from the kernel and all other processes running on the system or cross guest/host boundaries to read host memory. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. To fully resolve these vulnerabilities it is also necessary to install updated CPU microcode. An updated intel-microcode package (only available in Debian non-free) will be provided via a separate DSA. The updated CPU microcode may also be available as part of a system firmware ("BIOS") update. In addition, this update includes a fix for a regression causing deadlocks inside the loopback driver, which was introduced by the update to 4.9.168 in the last Stretch point release. For the stable distribution (stretch), these problems have been fixed in version 4.9.168-1+deb9u2. We recommend that you upgrade your linux packages. 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAlzbK/hfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0RDbhAAkCG4A3Yx+lAGMIgm9lXWeacyTFQ7RhS0NzQ+7rewiQZti4JphoEnuub1 sq9GH041twKbQQKJiuRD7AvKIzt8hfziQVBvIs+Nojp3fOHU9TIDqqENmfBYflkQ qvP/tP5vqXREMihV6zGAzK47lfIvEztAQYiZymD4zMzWF0QrY/9/uEQFgwgD5AaP xvreR+M2tsWQR3MZOAfWlTbX9nSbyV2K7nULs5y+g0ko8sbJDxNhfKO/6yauSiHK pq6I3Fg56PsNtse/r/II9jlGE9DYvC+cI9vRNEBZep9A0dmRqN8j3sk0jmNVfi/F Tm3jWFgtRtaa6ANMeBHIBQzkGjML6GbE68Iyf0+EGZ7ZrXSeAIi4InYFCNJA7w5/ K0Nu2nCMAaxVwYPAO7mvNxAnKgOPLE+e7fYNlqztpHOO/nXNmOG7zknqstlkS+Vc LfsjAiqtAGw6PubdXMSc5BVrdQQTmT3tvqg4BW2i3bWeaW43MyQRc1cizplVrNLt KKgC1qNLGIvSZLejDF5KXX8VT50UEa05QshRHWu9Ckkvid2hedzipZkTsN5tsRoc XuCtYsbZqawHmExfyryqtkhTc4pti2nvHPzcMpJtmXtdkkvxh3ZYXbTR0vsSwJHt rLY3ms+Sw/DT0kdXgEb1gz4prezXcINgPhGDiP/hbRaQnsP2x7U= =ukU9 -----END PGP SIGNATURE----- . Please note that fully mitigating the Microarchitectural Data Sampling (MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091) requires corresponding processor microcode/firmware updates or, in virtual environments, hypervisor updates. 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. 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

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

information disclosure

PATCH