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Red Hat Security Advisory 2012-1156-01

Red Hat Security Advisory 2012-1156-01
Posted Aug 15, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1156-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. An integer overflow flaw was found in the i915_gem_execbuffer2() function in the Intel i915 driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. This issue only affected 32-bit systems. A missing initialization flaw was found in the sco_sock_getsockopt_old() function in the Linux kernel's Bluetooth implementation. A local, unprivileged user could use this flaw to cause an information leak.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2011-1078, CVE-2012-2383
MD5 | 80c5957b637083b55e9d589f81c8faf3

Red Hat Security Advisory 2012-1156-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2012:1156-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1156.html
Issue date: 2012-08-14
CVE Names: CVE-2011-1078 CVE-2012-2383
=====================================================================

1. Summary:

Updated kernel packages that fix two security issues and several bugs are
now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

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

This update fixes the following security issues:

* An integer overflow flaw was found in the i915_gem_execbuffer2() function
in the Intel i915 driver in the Linux kernel. A local, unprivileged user
could use this flaw to cause a denial of service. This issue only affected
32-bit systems. (CVE-2012-2383, Moderate)

* A missing initialization flaw was found in the sco_sock_getsockopt_old()
function in the Linux kernel's Bluetooth implementation. A local,
unprivileged user could use this flaw to cause an information leak.
(CVE-2011-1078, Low)

Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting the
CVE-2011-1078 issue.

This update also fixes several bugs. Documentation for these changes will
be available shortly from the Technical Notes document linked to in the
References section.

Users should upgrade to these updated packages, which contain backported
patches to correct these issues, and fix the bugs noted in the Technical
Notes. The system must be rebooted for this update to take effect.

4. 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.

5. Bugs fixed (http://bugzilla.redhat.com/):

681259 - CVE-2011-1078 kernel: bt sco_conninfo infoleak
824176 - CVE-2012-2383 kernel: drm/i915: integer overflow in i915_gem_execbuffer2()
842429 - VLAN configured on top of a bonded interface (active-backup) does not failover [rhel-6.3.z]

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
kernel-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-headers-2.6.32-279.5.1.el6.i686.rpm
perf-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-279.5.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.5.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.5.1.el6.x86_64.rpm
perf-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

noarch:
kernel-doc-2.6.32-279.5.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.5.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.5.1.el6.x86_64.rpm
perf-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
kernel-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-headers-2.6.32-279.5.1.el6.i686.rpm
perf-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-279.5.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.5.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-279.5.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debug-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-279.5.1.el6.ppc64.rpm
kernel-devel-2.6.32-279.5.1.el6.ppc64.rpm
kernel-headers-2.6.32-279.5.1.el6.ppc64.rpm
perf-2.6.32-279.5.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-279.5.1.el6.s390x.rpm
kernel-debug-2.6.32-279.5.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-279.5.1.el6.s390x.rpm
kernel-devel-2.6.32-279.5.1.el6.s390x.rpm
kernel-headers-2.6.32-279.5.1.el6.s390x.rpm
kernel-kdump-2.6.32-279.5.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-279.5.1.el6.s390x.rpm
perf-2.6.32-279.5.1.el6.s390x.rpm
perf-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.s390x.rpm

x86_64:
kernel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.5.1.el6.x86_64.rpm
perf-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

ppc64:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-279.5.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm
python-perf-2.6.32-279.5.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-279.5.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
perf-debuginfo-2.6.32-279.5.1.el6.s390x.rpm
python-perf-2.6.32-279.5.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.s390x.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
kernel-devel-2.6.32-279.5.1.el6.i686.rpm
kernel-headers-2.6.32-279.5.1.el6.i686.rpm
perf-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-279.5.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.5.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.5.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.5.1.el6.x86_64.rpm
perf-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-279.5.1.el6.src.rpm

i386:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.5.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm
python-perf-2.6.32-279.5.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.5.1.el6.i686.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.5.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-2.6.32-279.5.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.5.1.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

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-1078.html
https://www.redhat.com/security/data/cve/CVE-2012-2383.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html#RHSA-2012-1156

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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