Input validation error in FFmpeg - CVE-2012-2786
Published: September 11, 2012 / Updated: June 8, 2025
Vulnerability identifier: #VU43587
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-2786
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Unspecified vulnerability in the decode_wdlt function in libavcodec/dfa.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4, has unknown impact and attack vectors, related to an "out of array write."
Affected software
FFmpeg
Ubuntu
libavcodec53 (Ubuntu package)
libavformat53 (Ubuntu package)
Ubuntu
libavcodec53 (Ubuntu package)
libavformat53 (Ubuntu package)
How to mitigate CVE-2012-2786
Install update from vendor's website.
FFmpeg - update to 0.11
libavcodec53 (Ubuntu package) - addressed in versions 4:0.7.6-0ubuntu0.11.10.2, 4:0.8.4-0ubuntu0.12.04.1, 6:0.8.4-0ubuntu0.12.10.1
libavformat53 (Ubuntu package) - addressed in versions 4:0.7.6-0ubuntu0.11.10.2, 4:0.8.4-0ubuntu0.12.04.1, 6:0.8.4-0ubuntu0.12.10.1
libavcodec53 (Ubuntu package) - addressed in versions 4:0.7.6-0ubuntu0.11.10.2, 4:0.8.4-0ubuntu0.12.04.1, 6:0.8.4-0ubuntu0.12.10.1
libavformat53 (Ubuntu package) - addressed in versions 4:0.7.6-0ubuntu0.11.10.2, 4:0.8.4-0ubuntu0.12.04.1, 6:0.8.4-0ubuntu0.12.10.1
External References
- http://ffmpeg.org/security.html
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d1c95d2ce39560e251fdb14f4af91b04fd7b845c
- http://libav.org/releases/libav-0.7.7.changelog
- http://libav.org/releases/libav-0.8.4.changelog
- http://secunia.com/advisories/50468
- http://secunia.com/advisories/51257
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:079
- http://www.openwall.com/lists/oss-security/2012/08/31/3
- http://www.openwall.com/lists/oss-security/2012/09/02/4
- http://www.securityfocus.com/bid/55355