medium
6.8
CWE
119
Advisory Published
Updated

CVE-2011-3945: Buffer Overflow

First published: Mon Aug 20 2012(Updated: )

The decode_frame function in the KVG1 decoder (kgv1dec.c) in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted media file.

Credit: cve-coordination@google.com

Affected SoftwareAffected VersionHow to fix
FFmpeg=0.7
FFmpeg=0.7.1
FFmpeg=0.7.2
FFmpeg=0.7.3
FFmpeg=0.7.6
FFmpeg=0.7.7
FFmpeg=0.7.8
FFmpeg=0.7.9
FFmpeg=0.7.11
FFmpeg=0.8.0
FFmpeg=0.8.1
FFmpeg=0.8.2
FFmpeg=0.8.5
FFmpeg=0.8.6
FFmpeg=0.8.7
FFmpeg=0.8.8
FFmpeg=0.8.10
libavutil=0.5
libavutil=0.5.1
libavutil=0.5.2
libavutil=0.5.3
libavutil=0.5.4
libavutil=0.5.5
libavutil=0.5.6
libavutil=0.5.7
libavutil=0.6
libavutil=0.6.1
libavutil=0.6.2
libavutil=0.6.3
libavutil=0.6.4
libavutil=0.6.5
libavutil=0.7
libavutil=0.7-beta1
libavutil=0.7-beta2
libavutil=0.7.1
libavutil=0.7.2
libavutil=0.7.3
libavutil=0.7.4
libavutil=0.8
libavutil=0.8-beta2

Remedy

http://git.libav.org/?p=libav.git;a=commit;h=a02e8df973f5478ec82f4c507f5b5b191a5ecb6b

Remedy

http://git.videolan.org/?p=ffmpeg.git;a=commit;h=807a045ab7f51993a2c1b3116016cbbd4f3d20d6

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-3945?

    CVE-2011-3945 has a medium severity rating due to its potential to cause a denial of service.

  • How do I fix CVE-2011-3945?

    To fix CVE-2011-3945, upgrade to FFmpeg version 0.7.12 or later, or 0.8.11 or later, or Libav version 0.5.9, 0.6.6, 0.7.5, or 0.8.1.

  • What types of systems are affected by CVE-2011-3945?

    CVE-2011-3945 affects various versions of FFmpeg and Libav before their respective patch releases.

  • How can CVE-2011-3945 be exploited by attackers?

    Attackers can exploit CVE-2011-3945 to craft malicious video files that may crash affected applications.

  • What are the potential impacts of CVE-2011-3945?

    The potential impacts of CVE-2011-3945 include application crashes and denial of service conditions on vulnerable systems.

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