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Gentoo Linux Security Advisory                           GLSA 200509-01
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  Severity: Normal
     Title: MPlayer: Heap overflow in ad_pcm.c
      Date: September 01, 2005
      Bugs: #103555
        ID: 200509-01

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Synopsis
========

A heap overflow in MPlayer might lead to the execution of arbitrary
code.

Background
==========

MPlayer is a media player capable of handling multiple multimedia file
formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /    Vulnerable    /              Unaffected
    -------------------------------------------------------------------
  1  media-video/mplayer      < 1.0_pre7-r1             >= 1.0_pre7-r1

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

Sven Tantau discovered a heap overflow in the code handling the strf
chunk of PCM audio streams.

Impact
======

An attacker could craft a malicious video or audio file which, when
opened using MPlayer, would end up executing arbitrary code on the
victim's computer with the permissions of the user running MPlayer.

Workaround
==========

You can mitigate the issue by adding "ac=-pcm," to your MPlayer
configuration file (note that this will prevent you from playing
uncompressed audio).

Resolution
==========

All MPlayer users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/mplayer-1.0_pre7-r1"

References
==========

  [ 1 ] CAN-2005-2718
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2718
  [ 2 ] Original Advisory
        http://www.sven-tantau.de/public_files/mplayer/mplayer_20050824.txt

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

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

  http://security.gentoo.org/glsa/glsa-200509-01.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
http://bugs.gentoo.org.

License
=======

Copyright 2005 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/2.0


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