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Red Hat 6 RHSA-2012:1156-01 Moderate: Kernel Denial Of Service

red hat
Calendar Grey August 14, 2012
Dist Redhat Esm H88
Cautionary notice regarding Red Hat kernel upgrade addressing vulnerabilities and errors. Recommended to enhance system reliability.
Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate denial of service Red Hat kernel update bug fix spoofing

References

https://access.redhat.com/security/cve/CVE-2011-1078 https://access.redhat.com/security/cve/CVE-2012-2383 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
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:
i386: kernel-debug-debuginfo-2.6.32-279.5.1.el6.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:1156-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1156.html
Issue date: 2012-08-14

Topic

Updated kernel packages that fix two security issues and several bugs arenow available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service Red Hat kernel update bug fix spoofing

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

Bugs Fixed

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]

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