Issued:
2019-09-23
Updated:
2019-09-23

RHSA-2019:2862 - Important: kernel-alt security update

Synopsis

Important: kernel-alt security update

Type/Severity

Security Advisory Important

Topic

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.

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.

Description

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

  • A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host. (CVE-2019-14835)

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.

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power 97ppc64le
Red Hat Enterprise Linux for IBM System z (Structure A)7s390x
Red Hat Enterprise Linux for ARM 647aarch64

Updated Packages

  • kernel-debug-devel-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debug-debuginfo-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-headers-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-bootwrapper-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-tools-libs-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debuginfo-common-s390x-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-headers-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-kdump-devel-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-tools-debuginfo-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-4.14.0-115.13.1.el7a.ppc64le.rpm
  • perf-debuginfo-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-debug-debuginfo-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-debug-debuginfo-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-devel-4.14.0-115.13.1.el7a.s390x.rpm
  • python-perf-4.14.0-115.13.1.el7a.aarch64.rpm
  • python-perf-debuginfo-4.14.0-115.13.1.el7a.ppc64le.rpm
  • python-perf-debuginfo-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-debug-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-doc-4.14.0-115.13.1.el7a.noarch.rpm
  • kernel-tools-libs-devel-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-tools-libs-devel-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-headers-4.14.0-115.13.1.el7a.aarch64.rpm
  • python-perf-debuginfo-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-abi-whitelists-4.14.0-115.13.1.el7a.noarch.rpm
  • kernel-tools-libs-4.14.0-115.13.1.el7a.ppc64le.rpm
  • perf-4.14.0-115.13.1.el7a.aarch64.rpm
  • perf-debuginfo-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-debug-devel-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debuginfo-common-ppc64le-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-alt-4.14.0-115.13.1.el7a.src.rpm
  • kernel-kdump-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-tools-debuginfo-4.14.0-115.13.1.el7a.aarch64.rpm
  • perf-4.14.0-115.13.1.el7a.ppc64le.rpm
  • python-perf-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-debuginfo-4.14.0-115.13.1.el7a.s390x.rpm
  • perf-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-tools-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debug-devel-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-devel-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debug-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-debuginfo-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debuginfo-common-aarch64-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-kdump-debuginfo-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-4.14.0-115.13.1.el7a.s390x.rpm
  • python-perf-4.14.0-115.13.1.el7a.s390x.rpm
  • kernel-debug-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-tools-4.14.0-115.13.1.el7a.ppc64le.rpm
  • kernel-devel-4.14.0-115.13.1.el7a.ppc64le.rpm
  • perf-debuginfo-4.14.0-115.13.1.el7a.aarch64.rpm
  • kernel-debuginfo-4.14.0-115.13.1.el7a.ppc64le.rpm

Fixes

CVEs

References

Additional information