Red Hat: 2013:0840-01: kernel: Important Advisory
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issue:
* It was found that the Red Hat Enterprise Linux 6.1 kernel update
(RHSA-2011:0542) introduced an integer conversion issue in the Linux
kernel's Performance Events implementation. This led to a user-supplied
index into the perf_swevent_enabled array not being validated properly,
resulting in out-of-bounds kernel memory access. A local, unprivileged user
could use this flaw to escalate their privileges. (CVE-2013-2094,
Important)
A public exploit that affects Red Hat Enterprise Linux 6 is available.
Refer to Red Hat Knowledge Solution 373743, linked to in the References,
for further information and mitigation instructions for users who are
unable to immediately apply this update.
Users should 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.
Summary
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/knowledge/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.
References
https://www.redhat.com/security/data/cve/CVE-2013-2094.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/site/solutions/373743 https://access.redhat.com/errata/RHSA-2011:0542.html
Package List
Red Hat Enterprise Linux Server EUS (v. 6.2):
Source:
kernel-2.6.32-220.34.2.el6.src.rpm
i386:
kernel-2.6.32-220.34.2.el6.i686.rpm
kernel-debug-2.6.32-220.34.2.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-220.34.2.el6.i686.rpm
kernel-debug-devel-2.6.32-220.34.2.el6.i686.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-220.34.2.el6.i686.rpm
kernel-devel-2.6.32-220.34.2.el6.i686.rpm
kernel-headers-2.6.32-220.34.2.el6.i686.rpm
perf-2.6.32-220.34.2.el6.i686.rpm
perf-debuginfo-2.6.32-220.34.2.el6.i686.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.i686.rpm
noarch:
kernel-doc-2.6.32-220.34.2.el6.noarch.rpm
kernel-firmware-2.6.32-220.34.2.el6.noarch.rpm
ppc64:
kernel-2.6.32-220.34.2.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debug-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debug-devel-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-220.34.2.el6.ppc64.rpm
kernel-devel-2.6.32-220.34.2.el6.ppc64.rpm
kernel-headers-2.6.32-220.34.2.el6.ppc64.rpm
perf-2.6.32-220.34.2.el6.ppc64.rpm
perf-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
s390x:
kernel-2.6.32-220.34.2.el6.s390x.rpm
kernel-debug-2.6.32-220.34.2.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
kernel-debug-devel-2.6.32-220.34.2.el6.s390x.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-220.34.2.el6.s390x.rpm
kernel-devel-2.6.32-220.34.2.el6.s390x.rpm
kernel-headers-2.6.32-220.34.2.el6.s390x.rpm
kernel-kdump-2.6.32-220.34.2.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
kernel-kdump-devel-2.6.32-220.34.2.el6.s390x.rpm
perf-2.6.32-220.34.2.el6.s390x.rpm
perf-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
x86_64:
kernel-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debug-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debug-devel-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-220.34.2.el6.x86_64.rpm
kernel-devel-2.6.32-220.34.2.el6.x86_64.rpm
kernel-headers-2.6.32-220.34.2.el6.x86_64.rpm
perf-2.6.32-220.34.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.2):
Source:
kernel-2.6.32-220.34.2.el6.src.rpm
i386:
kernel-debug-debuginfo-2.6.32-220.34.2.el6.i686.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-220.34.2.el6.i686.rpm
perf-debuginfo-2.6.32-220.34.2.el6.i686.rpm
python-perf-2.6.32-220.34.2.el6.i686.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.i686.rpm
ppc64:
kernel-debug-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-220.34.2.el6.ppc64.rpm
perf-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
python-perf-2.6.32-220.34.2.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.ppc64.rpm
s390x:
kernel-debug-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-220.34.2.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
perf-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
python-perf-2.6.32-220.34.2.el6.s390x.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.s390x.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-220.34.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-220.34.2.el6.x86_64.rpm
python-perf-2.6.32-220.34.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-220.34.2.el6.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/#package
Topic
Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 6.2 Extended Update Support.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server EUS (v. 6.2) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.2) - i386, ppc64, s390x, x86_64
Bugs Fixed
962792 - CVE-2013-2094 kernel: perf_swevent_enabled array out-of-bound access