CVE-2011-3973

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-02 · updated 2026-06-16
Weakness: CWE-399

Description

cavsdec.c in libavcodec in FFmpeg before 0.7.4 and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362.

Affected products

FFmpeg: through 0.7.3; 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.0 (+21)

References

http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=bd968d260aef322fb32e254a3de0d2036c57bd56
http://www.ffmpeg.org/releases/ffmpeg-0.7.5.changelog
http://www.ffmpeg.org/releases/ffmpeg-0.8.4.changelog
http://www.mandriva.com/security/advisories?name=MDVSA-2012:074
http://www.mandriva.com/security/advisories?name=MDVSA-2012:075
http://www.mandriva.com/security/advisories?name=MDVSA-2012:076
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=bd968d260aef322fb32e254a3de0d2036c57bd56
http://www.ffmpeg.org/releases/ffmpeg-0.7.5.changelog
http://www.ffmpeg.org/releases/ffmpeg-0.8.4.changelog
http://www.mandriva.com/security/advisories?name=MDVSA-2012:074
http://www.mandriva.com/security/advisories?name=MDVSA-2012:075
http://www.mandriva.com/security/advisories?name=MDVSA-2012:076

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