Gentoo: VLC Multiple vulnerabilities
Posted by Benjamin D. Thomas   
Gentoo Multiple vulnerabilities in VLC may lead to the remote execution of arbitrary code.
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Gentoo Linux Security Advisory                           GLSA 200812-24
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: VLC: Multiple vulnerabilities
      Date: December 24, 2008
      Bugs: #245774, #249391
        ID: 200812-24

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Synopsis
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Multiple vulnerabilities in VLC may lead to the remote execution of
arbitrary code.

Background
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VLC is a cross-platform media player and streaming server.

Affected packages
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    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-video/vlc      < 0.9.8a                           >=3D 0.9.8a

Description
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Tobias Klein reported the following vulnerabilities:

* A stack-based buffer overflow when processing CUE image files in
  modules/access/vcd/cdrom.c (CVE-2008-5032).

* A stack-based buffer overflow when processing RealText (.rt)
  subtitle files in the ParseRealText() function in
  modules/demux/subtitle.c (CVE-2008-5036).

* An integer overflow when processing RealMedia (.rm) files in the
  ReadRealIndex() function in real.c in the Real demuxer plugin,
  leading to a heap-based buffer overflow (CVE-2008-5276).

Impact
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A remote attacker could entice a user to open a specially crafted CUE
image file, RealMedia file or RealText subtitle file, possibly
resulting in the execution of arbitrary code with the privileges of the
user running the application.

Workaround
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There is no known workaround at this time.

Resolution
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All VLC users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=3Dmedia-video/vlc-0.9.8a"

References
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  [ 1 ] CVE-2008-5032
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-5032
  [ 2 ] CVE-2008-5036
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-5036
  [ 3 ] CVE-2008-5276
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-5276

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

  http://security.gentoo.org/glsa/glsa-200812-24.xml

Concerns?
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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
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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