Description
Heap-based buffer overflow in the vqa_decode_chunk function in the VQA codec (vqavideo.c) in libavcodec in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted VQA media file in which the image size is not a multiple of the block size.
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 | 4:0.5.8-1 | DSA-2471-1 |
Advisories 1
- DSA-2471-1 ffmpeg - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugs.launchpad.net/ubuntu/+source/libav/+bug/980963
- USN-1479-1 vendor-advisory
- http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=58b2e0f0f2fc96c1158e04f8aba95cbe6157a1a3
- 49089 third-party-advisory
- DSA-2471 vendor-advisory
- http://libav.org/
- 53389 vdb-entry
- [oss-security] 20120503 Security issue in libav/ffmpeg mailing-list