[ GLSA 200903-33 ] FFmpeg: Multiple vulnerabilities

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200903-33
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: FFmpeg: Multiple vulnerabilities
      Date: March 19, 2009
      Bugs: #231831, #231834, #245313, #257217, #257381
        ID: 200903-33

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Synopsis
========

Multiple vulnerabilities in FFmpeg may lead to the remote execution of
arbitrary code or a Denial of Service.

Background
==========

FFmpeg is a complete solution to record, convert and stream audio and
video. gst-plugins-ffmpeg is a FFmpeg based gstreamer plugin which
includes a vulnerable copy of FFmpeg code. Mplayer is a multimedia
player which also includes a vulnerable copy of the code.

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

    -------------------------------------------------------------------
     Package             /      Vulnerable      /           Unaffected
    -------------------------------------------------------------------
  1  ffmpeg                  < 0.4.9_p20090201      >= 0.4.9_p20090201
  2  gst-plugins-ffmpeg          < 0.10.5                    >= 0.10.5
  3  mplayer                 < 1.0_rc2_p28450        >= 1.0_rc2_p28450
    -------------------------------------------------------------------
     3 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Multiple vulnerabilities were found in FFmpeg:

* astrange reported a stack-based buffer overflow in the
  str_read_packet() in libavformat/psxstr.c when processing .str files
  (CVE-2008-3162).

* Multiple buffer overflows in libavformat/utils.c (CVE-2008-4866).

* A buffer overflow in libavcodec/dca.c (CVE-2008-4867).

* An unspecified vulnerability in the avcodec_close() function in
  libavcodec/utils.c (CVE-2008-4868).

* Unspecified memory leaks (CVE-2008-4869).

* Tobias Klein repoerted a NULL pointer dereference due to an integer
  signedness error in the fourxm_read_header() function in
  libavformat/4xm.c (CVE-2009-0385).

Impact
======

A remote attacker could entice a user to open a specially crafted media
file, possibly leading to the execution of arbitrary code with the
privileges of the user running the application, or a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All FFmpeg users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose >=media-video/ffmpeg-0.4.9_p20090201"

All gst-plugins-ffmpeg users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
> =media-plugins/gst-plugins-ffmpeg-0.10.5"

All Mplayer users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose >=media-video/mplayer-1.0_rc2_p28450"

References
==========

  [ 1 ] CVE-2008-3162
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3162
  [ 2 ] CVE-2008-4866
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4866
  [ 3 ] CVE-2008-4867
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4867
  [ 4 ] CVE-2008-4868
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4868
  [ 5 ] CVE-2008-4869
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4869
  [ 6 ] CVE-2009-0385
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0385

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

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

  http://security.gentoo.org/glsa/glsa-200903-33.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 2009 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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