[ GLSA 200804-17 ] Speex: User-assisted execution of arbitrary code

[Robert Buchholz <rbu () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200804-17
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Speex: User-assisted execution of arbitrary code
      Date: April 17, 2008
      Bugs: #217715
        ID: 200804-17

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Synopsis
========

Improper input validation in Speex might lead to array indexing
vulnerabilities in multiple player applications.

Background
==========

Speex is an audio compression format designed for speech that is free
of patent restrictions.

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

    -------------------------------------------------------------------
     Package           /    Vulnerable    /                 Unaffected
    -------------------------------------------------------------------
  1  media-libs/speex     < 1.2_beta3_p2               >= 1.2_beta3_p2

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

oCERT reported that the Speex library does not properly validate the
"mode" value it derives from Speex streams, allowing for array indexing
vulnerabilities inside multiple player applications. Within Gentoo,
xine-lib, VLC, gst-plugins-speex from the GStreamer Good Plug-ins,
vorbis-tools, libfishsound, Sweep, SDL_sound, and speexdec were found
to be vulnerable.

Impact
======

A remote attacker could entice a user to open a specially crafted Speex
file or network stream with an application listed above. This might
lead to the execution of arbitrary code with privileges of the user
playing the file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Speex users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/speex-1.2_beta3_p2"

References
==========

  [ 1 ] CVE-2008-1686
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1686

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

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

  http://security.gentoo.org/glsa/glsa-200804-17.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 2008 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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