[ GLSA 200509-01 ] MPlayer: Heap overflow in ad_pcm.c

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200509-01
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                                            http://security.gentoo.org/
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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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