[ GLSA 200708-02 ] Xvid: Array indexing vulnerabilities

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  Severity: Normal
     Title: Xvid: Array indexing vulnerabilities
      Date: August 08, 2007
      Bugs: #183145
        ID: 200708-02

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Synopsis

Several array indexing vulnerabilities were discovered in Xvid, possibly allowing for the remote execution of arbitrary code.

Background

Xvid is a popular open source video codec licensed under the GPL.

Affected packages

     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-libs/xvid       < 1.1.3                            >= 1.1.3

Description

Trixter Jack discovered an array indexing error in the get_intra_block() function in the file src/bitstream/mbcoding.c. The get_inter_block_h263() and get_inter_block_mpeg() functions in the same file were also reported as vulnerable.

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Impact

An attacker could exploit these vulnerabilities to execute arbitrary code by tricking a user or automated system into processing a malicious video file with an application that makes use of the Xvid library.

Workaround

There is no known workaround at this time.

Resolution

All Xvid users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/xvid-1.1.3"

References

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  [ 1 ] CVE-2007-3329
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3329

Availability

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

  http://security.gentoo.org/glsa/glsa-200708-02.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 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

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