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                                    CERT-Renater

                         Note d'Information No. 2006/VULN384
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DATE                      : 04/07/2006

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running mpg123 versions prior to
                                                            0.59s-r11.

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Gentoo Linux Security Advisory                           GLSA 200607-01
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: mpg123: Heap overflow
       Date: July 03, 2006
       Bugs: #133988
         ID: 200607-01

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Synopsis
========

A heap overflow in mpg123 was discovered, which could result in the
execution of arbitrary code.

Background
==========

mpg123 is a real time audio player designed for the MPEG format.

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

     -------------------------------------------------------------------
      Package             /   Vulnerable   /                 Unaffected
     -------------------------------------------------------------------
   1  media-sound/mpg123      < 0.59s-r11                  >= 0.59s-r11

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

In httpdget.c, a variable is assigned to the heap, and is supposed to
receive a smaller allocation. As this variable was not terminated
properly, strncpy() will overwrite the data assigned next in memory.

Impact
======

By enticing a user to visit a malicious URL, an attacker could possibly
execute arbitrary code with the rights of the user running mpg123.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mpg123 users should update to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=media-sound/mpg123-0.59s-r11"

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

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

   http://security.gentoo.org/glsa/glsa-200607-01.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
http://bugs.gentoo.org.

License
=======

Copyright 2006 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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