Issued:
2019-02-26
Updated:
2019-02-26

RHSA-2019:0415 - Important: kernel security and bug fix update

Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory Important

Topic

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.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902)

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):

  • Previously backported upstream patch caused a change in the behavior of page fault handler. As a consequence, applications compiled through GNU Compiler Collection (GCC) version 4.4.7 sometimes generated stack access exceeding the 64K limit. Running such applications subsequently triggered a segmentation fault. With this update, the 64k limit check in the page fault handler has been removed. As a result, running the affected applications no longer triggers the segmentation fault in the described scenario.

Note that removing the limit check does not impact the integrity of the kernel itself. (BZ#1644401)

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 Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • kernel-debug-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-devel-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-devel-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-headers-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-headers-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-debuginfo-2.6.32-754.11.1.el6.i686.rpm
  • kernel-kdump-debuginfo-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-debug-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-debuginfo-common-s390x-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-debug-debuginfo-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-debuginfo-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-headers-2.6.32-754.11.1.el6.i686.rpm
  • kernel-2.6.32-754.11.1.el6.ppc64.rpm
  • perf-2.6.32-754.11.1.el6.i686.rpm
  • kernel-2.6.32-754.11.1.el6.x86_64.rpm
  • perf-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-devel-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-bootwrapper-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-debug-debuginfo-2.6.32-754.11.1.el6.i686.rpm
  • perf-debuginfo-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-2.6.32-754.11.1.el6.s390x.rpm
  • python-perf-2.6.32-754.11.1.el6.x86_64.rpm
  • python-perf-debuginfo-2.6.32-754.11.1.el6.i686.rpm
  • kernel-debug-devel-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-kdump-devel-2.6.32-754.11.1.el6.s390x.rpm
  • perf-2.6.32-754.11.1.el6.s390x.rpm
  • python-perf-2.6.32-754.11.1.el6.i686.rpm
  • perf-debuginfo-2.6.32-754.11.1.el6.i686.rpm
  • python-perf-debuginfo-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-abi-whitelists-2.6.32-754.11.1.el6.noarch.rpm
  • kernel-headers-2.6.32-754.11.1.el6.ppc64.rpm
  • python-perf-debuginfo-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-debug-2.6.32-754.11.1.el6.i686.rpm
  • kernel-debuginfo-common-i686-2.6.32-754.11.1.el6.i686.rpm
  • kernel-2.6.32-754.11.1.el6.src.rpm
  • kernel-debug-debuginfo-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-debuginfo-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-debuginfo-common-x86_64-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-debuginfo-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-debug-devel-2.6.32-754.11.1.el6.i686.rpm
  • kernel-debug-devel-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-doc-2.6.32-754.11.1.el6.noarch.rpm
  • kernel-debug-debuginfo-2.6.32-754.11.1.el6.s390x.rpm
  • perf-2.6.32-754.11.1.el6.ppc64.rpm
  • perf-debuginfo-2.6.32-754.11.1.el6.s390x.rpm
  • perf-debuginfo-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-kdump-2.6.32-754.11.1.el6.s390x.rpm
  • kernel-debug-devel-2.6.32-754.11.1.el6.s390x.rpm
  • python-perf-2.6.32-754.11.1.el6.ppc64.rpm
  • python-perf-2.6.32-754.11.1.el6.s390x.rpm
  • python-perf-debuginfo-2.6.32-754.11.1.el6.x86_64.rpm
  • kernel-firmware-2.6.32-754.11.1.el6.noarch.rpm
  • kernel-2.6.32-754.11.1.el6.i686.rpm
  • kernel-debug-2.6.32-754.11.1.el6.ppc64.rpm
  • kernel-devel-2.6.32-754.11.1.el6.i686.rpm
  • kernel-debuginfo-common-ppc64-2.6.32-754.11.1.el6.ppc64.rpm

Fixes

CVEs

References

Additional information