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Gentoo Linux Security Advisory                           GLSA 201206-07
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: nginx: User-assisted execution of arbitrary code
     Date: June 21, 2012
     Bugs: #411751
       ID: 201206-07

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Synopsis
========

A buffer overflow vulnerability in nginx could result in the execution
of arbitrary code.

Background
==========

nginx is a robust, small, and high performance HTTP and reverse proxy
server.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  www-servers/nginx            < 1.0.15                  >= 1.0.15

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

An error in ngx_http_mp4_module.c could cause a buffer overflow.

NOTE: nginx must have been emerged with USE="nginx_modules_http_mp4" in
order to be affected by this vulnerability.

Impact
======

A remote attacker could entice a user to place a specially crafted MP4
file on the nginx server, 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 nginx users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.0.15"

References
==========

[ 1 ] CVE-2012-2089
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2089

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

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

 http://security.gentoo.org/glsa/glsa-201206-07.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 2012 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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