Description
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
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 | 6:0.8.15-1 | DSA-3003-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libav-tools | 12.3-1.17 | openSUSE-SU-2024:10926-1 |
Advisories 2
- DSA-3003-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10926-1 libav-tools-12.3-1.17 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026