Description
The decode_slice_header function in libavcodec/h264.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via crafted H.264 data, which triggers an out-of-bounds array access.
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 7 | libav | 6:0.8.9-1 | DSA-2793-1 |
Advisories 1
- DSA-2793-1 libav - several Debian Security (DSA / DLA) · Mar 9, 2026