[Full-disclosure] [ GLSA 201011-01 ] GNU C library: Multiple vulnerabilities

[Tobias Heinlein]

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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 at 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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