libavcodec/jpeg2000dec.c in FFmpeg before 2.1 does not ensure the use of valid code-block dimension values, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted JPEG2000 data.
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 |
|---|---|
| https://security.gentoo.org/glsa/201603-06 | vendor advisory |
| http://ffmpeg.org/security.html | |
| http://openwall.com/lists/oss-security/2013/12/08/3 | mailing list patch |
| https://github.com/FFmpeg/FFmpeg/commit/9a271a9368eaabf99e6c2046103acb33957e63b7 | patch exploit |
| http://openwall.com/lists/oss-security/2013/11/26/7 | mailing list patch |
| https://trac.ffmpeg.org/ticket/2895 | exploit |