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[RHSA-2013:0695-01] Important: kernel security update


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Posted 02 April 2013 - 10:56 PM

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security update
Advisory ID: RHSA-2013:0695-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.c...-2013-0695.html
Issue date: 2013-04-02
CVE Names: CVE-2013-0871
=====================================================================

1. Summary:

Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.6 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux EUS (v. 5.6 server) - i386, ia64, noarch, ppc, s390x, x86_64

3. Description:

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

This update fixes the following security issue:

* A race condition was found in the way the Linux kernel's ptrace
implementation handled PTRACE_SETREGS requests when the debuggee was woken
due to a SIGKILL signal instead of being stopped. A local, unprivileged
user could use this flaw to escalate their privileges. (CVE-2013-0871,
Important)

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.

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.redha.../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/):

911937 - CVE-2013-0871 kernel: race condition with PTRACE_SETREGS

6. Package List:

Red Hat Enterprise Linux EUS (v. 5.6 server):

Source:
kernel-2.6.18-238.49.1.el5.src.rpm

i386:
kernel-2.6.18-238.49.1.el5.i686.rpm
kernel-PAE-2.6.18-238.49.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-238.49.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-238.49.1.el5.i686.rpm
kernel-debug-2.6.18-238.49.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-238.49.1.el5.i686.rpm
kernel-debug-devel-2.6.18-238.49.1.el5.i686.rpm
kernel-debuginfo-2.6.18-238.49.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-238.49.1.el5.i686.rpm
kernel-devel-2.6.18-238.49.1.el5.i686.rpm
kernel-headers-2.6.18-238.49.1.el5.i386.rpm
kernel-xen-2.6.18-238.49.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-238.49.1.el5.i686.rpm
kernel-xen-devel-2.6.18-238.49.1.el5.i686.rpm

ia64:
kernel-2.6.18-238.49.1.el5.ia64.rpm
kernel-debug-2.6.18-238.49.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-238.49.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-238.49.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-238.49.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-238.49.1.el5.ia64.rpm
kernel-devel-2.6.18-238.49.1.el5.ia64.rpm
kernel-headers-2.6.18-238.49.1.el5.ia64.rpm
kernel-xen-2.6.18-238.49.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-238.49.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-238.49.1.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-238.49.1.el5.noarch.rpm

ppc:
kernel-2.6.18-238.49.1.el5.ppc64.rpm
kernel-debug-2.6.18-238.49.1.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-238.49.1.el5.ppc64.rpm
kernel-debug-devel-2.6.18-238.49.1.el5.ppc64.rpm
kernel-debuginfo-2.6.18-238.49.1.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-238.49.1.el5.ppc64.rpm
kernel-devel-2.6.18-238.49.1.el5.ppc64.rpm
kernel-headers-2.6.18-238.49.1.el5.ppc.rpm
kernel-headers-2.6.18-238.49.1.el5.ppc64.rpm
kernel-kdump-2.6.18-238.49.1.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-238.49.1.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-238.49.1.el5.ppc64.rpm

s390x:
kernel-2.6.18-238.49.1.el5.s390x.rpm
kernel-debug-2.6.18-238.49.1.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-238.49.1.el5.s390x.rpm
kernel-debug-devel-2.6.18-238.49.1.el5.s390x.rpm
kernel-debuginfo-2.6.18-238.49.1.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-238.49.1.el5.s390x.rpm
kernel-devel-2.6.18-238.49.1.el5.s390x.rpm
kernel-headers-2.6.18-238.49.1.el5.s390x.rpm
kernel-kdump-2.6.18-238.49.1.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-238.49.1.el5.s390x.rpm
kernel-kdump-devel-2.6.18-238.49.1.el5.s390x.rpm

x86_64:
kernel-2.6.18-238.49.1.el5.x86_64.rpm
kernel-debug-2.6.18-238.49.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-238.49.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-238.49.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-238.49.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-238.49.1.el5.x86_64.rpm
kernel-devel-2.6.18-238.49.1.el5.x86_64.rpm
kernel-headers-2.6.18-238.49.1.el5.x86_64.rpm
kernel-xen-2.6.18-238.49.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-238.49.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-238.49.1.el5.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.redha...am/key/#package

7. References:

https://www.redhat.c...-2013-0871.html
https://access.redha...tion/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redha...y/team/contact/

Copyright 2013 Red Hat, Inc.
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