Issued:
2014-05-19
Updated:
2014-05-19

RHSA-2014:0512 - Important: kernel security update

Synopsis

Important: kernel security update

Type/Severity

Security Advisory Important

Topic

Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 6.3 Extended Update Support.

The Red Hat Security Response Team has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

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

  • A race condition flaw, leading to heap-based buffer overflows, was found in the way the Linux kernel's N_TTY line discipline (LDISC) implementation handled concurrent processing of echo output and TTY write operations originating from user space when the underlying TTY driver was PTY. An unprivileged, local user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-0196, Important)

All kernel users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system.

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3i386
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.3ppc64
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.3s390x
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3i386
Red Hat Enterprise Linux EUS Compute Node6.3x86_64

Updated Packages

  • kernel-debug-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-2.6.32-279.43.2.el6.i686.rpm
  • perf-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-debug-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-debuginfo-common-x86_64-2.6.32-279.43.2.el6.x86_64.rpm
  • perf-debuginfo-2.6.32-279.43.2.el6.i686.rpm
  • kernel-2.6.32-279.43.2.el6.s390x.rpm
  • perf-debuginfo-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-devel-2.6.32-279.43.2.el6.i686.rpm
  • kernel-bootwrapper-2.6.32-279.43.2.el6.ppc64.rpm
  • python-perf-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-headers-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-debuginfo-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-kdump-devel-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-doc-2.6.32-279.43.2.el6.noarch.rpm
  • kernel-debug-debuginfo-2.6.32-279.43.2.el6.i686.rpm
  • python-perf-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-debuginfo-common-ppc64-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-headers-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-debug-debuginfo-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-debuginfo-common-s390x-2.6.32-279.43.2.el6.s390x.rpm
  • python-perf-debuginfo-2.6.32-279.43.2.el6.x86_64.rpm
  • perf-2.6.32-279.43.2.el6.s390x.rpm
  • python-perf-2.6.32-279.43.2.el6.i686.rpm
  • kernel-debug-devel-2.6.32-279.43.2.el6.x86_64.rpm
  • python-perf-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-devel-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-headers-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-firmware-2.6.32-279.43.2.el6.noarch.rpm
  • kernel-debug-debuginfo-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-debug-devel-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-debug-devel-2.6.32-279.43.2.el6.ppc64.rpm
  • python-perf-debuginfo-2.6.32-279.43.2.el6.i686.rpm
  • kernel-debuginfo-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-kdump-debuginfo-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-2.6.32-279.43.2.el6.src.rpm
  • kernel-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-debug-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-debuginfo-2.6.32-279.43.2.el6.i686.rpm
  • python-perf-debuginfo-2.6.32-279.43.2.el6.s390x.rpm
  • perf-debuginfo-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-debuginfo-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-headers-2.6.32-279.43.2.el6.i686.rpm
  • kernel-debug-debuginfo-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-devel-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-kdump-2.6.32-279.43.2.el6.s390x.rpm
  • kernel-debuginfo-common-i686-2.6.32-279.43.2.el6.i686.rpm
  • kernel-debug-devel-2.6.32-279.43.2.el6.i686.rpm
  • python-perf-debuginfo-2.6.32-279.43.2.el6.ppc64.rpm
  • kernel-debug-2.6.32-279.43.2.el6.i686.rpm
  • perf-2.6.32-279.43.2.el6.i686.rpm
  • perf-2.6.32-279.43.2.el6.x86_64.rpm
  • kernel-devel-2.6.32-279.43.2.el6.ppc64.rpm
  • perf-debuginfo-2.6.32-279.43.2.el6.s390x.rpm

Fixes

CVEs

References

Additional information