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Gentoo Linux Security Advisory GLSA 201011-01
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http://security.gentoo.org/
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Severity: High
Title: GNU C library: Multiple vulnerabilities
Date: November 15, 2010
Bugs: #285818, #325555, #330923, #335871, #341755
ID: 201011-01

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Synopsis
========

Multiple vulnerabilities were found in glibc, the worst of which
allowing local attackers to execute arbitrary code as root.

Background
==========

The GNU C library is the standard C library used by Gentoo Linux
systems.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-libs/glibc < 2.11.2-r3 >= 2.11.2-r3

Description
===========

Multiple vulnerabilities were found in glibc, amongst others the
widely-known recent LD_AUDIT and $ORIGIN issues. For further
information please consult the CVE entries referenced below.

Impact
======

A local attacker could execute arbitrary code as root, cause a Denial
of Service, or gain privileges. Additionally, a user-assisted remote
attacker could cause the execution of arbitrary code, and a
context-dependent attacker could cause a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GNU C library users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.11.2-r3"

References
==========

[ 1 ] CVE-2009-4880
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4880
[ 2 ] CVE-2009-4881
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4881
[ 3 ] CVE-2010-0296
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0296
[ 4 ] CVE-2010-0830
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0830
[ 5 ] CVE-2010-3847
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3847
[ 6 ] CVE-2010-3856
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3856

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201011-01.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2010 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5