Description
Integer signedness error in the decode_residual_block function in cavsdec.c in libavcodec in FFmpeg before 0.7.3 and 0.8.x before 0.8.2, and libav through 0.7.1, allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted Chinese AVS video (aka CAVS) file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ffmpeg | 7:2.4.1-1 | — |
| Debian 13 | ffmpeg | 7:2.4.1-1 | — |
| Debian 12 | ffmpeg | 7:2.4.1-1 | — |
| Debian 6.0 | ffmpeg | 4:0.5.5-1 | DSA-2336-1 |
Advisories 1
- DSA-2336-1 ffmpeg - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 45532 third-party-advisory
- [oss-security] 20110913 CVE request: ffmpeg/libav insufficuent boundary check in CAVS decoding mailing-list
- http://www.ffmpeg.org/releases/ffmpeg-0.8.4.changelog
- http://www.ffmpeg.org/releases/ffmpeg-0.7.5.changelog
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=91d5da9321c52e8197fb14046ebb335f3e6ff4a0
- [oss-security] 20110914 Re: CVE request: ffmpeg/libav insufficuent boundary check in CAVS decoding mailing-list
- http://www.ocert.org/advisories/ocert-2011-002.html
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=c5cbda50793e311aa73489d12184ffd6761c9fbf