The svq1_decode_frame function in the SVQ1 decoder (svq1dec.c) in libavcodec in FFmpeg 0.5.x before 0.5.7, 0.6.x before 0.6.4, 0.7.x before 0.7.9, and 0.8.x before 0.8.8; and in Libav 0.5.x before 0.5.6, 0.6.x before 0.6.4, and 0.7.x before 0.7.3 allows remote attackers to cause a denial of service (memory corruption) via a crafted SVQ1 stream, related to "dimensions changed."
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=6e24b9488e67849a28e64a8056e05f83cf439229 | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:076 | vendor advisory |
| http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=6e24b9488e67849a28e64a8056e05f83cf439229 | |
| http://ubuntu.com/usn/usn-1320-1 | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:074 | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:075 | vendor advisory |
| http://ffmpeg.org/ | vendor advisory |
| http://libav.org/ | vendor advisory |
| http://ubuntu.com/usn/usn-1333-1 | vendor advisory |
| http://www.securityfocus.com/archive/1/520620 | mailing list |