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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


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