CVE-2012-0856

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-08-20 · updated 2026-06-16
Weakness: CWE-119

Description

Heap-based buffer overflow in the MPV_frame_start function in libavcodec/mpegvideo.c in FFmpeg before 0.9.1, when the lowres option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted H263 media file. NOTE: this vulnerability exists because of a regression error.

Affected products

FFmpeg: through 0.9; 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.0 (+36)

References

http://ffmpeg.org/security.html
http://ffmpeg.org/trac/ffmpeg/ticket/757
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=21270cffaeab2f67a613907516b2b0cd6c9eacf4
http://www.openwall.com/lists/oss-security/2012/02/01/11
http://www.openwall.com/lists/oss-security/2012/02/14/4
https://exchange.xforce.ibmcloud.com/vulnerabilities/78928
http://ffmpeg.org/security.html
http://ffmpeg.org/trac/ffmpeg/ticket/757
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=21270cffaeab2f67a613907516b2b0cd6c9eacf4
http://www.openwall.com/lists/oss-security/2012/02/01/11
http://www.openwall.com/lists/oss-security/2012/02/14/4
https://exchange.xforce.ibmcloud.com/vulnerabilities/78928

Get alerted when CVE-2012-0856 or the next vulnerability affects your stack