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Gentoo Linux Security Advisory                           GLSA 201406-02
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: libarchive: Multiple vulnerabilities
     Date: June 01, 2014
     Bugs: #366687, #463632
       ID: 201406-02

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Synopsis
========

Multiple vulnerabilities have been found in libarchive, some of which
may allow execution of arbitrary code.

Background
==========

libarchive is a library for manipulating different streaming archive
formats, including certain tar variants, several cpio formats, and both
BSD and GNU ar variants.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-arch/libarchive         < 3.1.2-r1               >= 3.1.2-r1

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

Multiple vulnerabilities have been discovered in libarchive. Please
review the CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user or automated process to open a
specially crafted archive using an application linked against
libarchive, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libarchive users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose
 ">=app-arch/libarchive-3.1.2-r1"

Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.

References
==========

[ 1 ] CVE-2010-4666
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4666
[ 2 ] CVE-2011-1777
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1777
[ 3 ] CVE-2011-1778
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1778
[ 4 ] CVE-2011-1779
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1779
[ 5 ] CVE-2013-0211
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0211

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

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

 http://security.gentoo.org/glsa/glsa-201406-02.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 2014 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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