Description
The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.
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 | 7:3.4.3-1 | — |
| Debian 13 | ffmpeg | 7:3.4.3-1 | — |
| Debian 12 | ffmpeg | 7:3.4.3-1 | — |
| Debian 9 | ffmpeg | 7:3.2.11-1~deb9u1 | DSA-4249-1 |
| Debian 8 | libav | 6:11.12-1~deb8u4 | DLA-1630-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | ffmpeg | 7:3.4.4-0ubuntu0.18.04.1 | — |
| Ubuntu 16.04 LTS | ffmpeg | 7:2.8.15-0ubuntu0.16.04.1 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.23 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.22 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.21 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.20 | ffmpeg +1 | 3.4.3-r0 | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.18 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.17 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.16 | ffmpeg +1 | 3.4.3-r0 | — |
| Alpine v3.15 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.14 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.13 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.12 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.11 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.10 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.9 | ffmpeg | 3.4.3-r0 | — |
| Alpine v3.8 | ffmpeg | 3.4.3-r0 | — |
Advisories 2
- DSA-4249-1 ffmpeg - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1630-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/7414d0bda7763f9bd69c26c068e482ab297c1c96
- DSA-4249 vendor-advisory
- [debian-lts-announce] 20190107 [SECURITY] [DLA 1630-1] libav security update mailing-list
- GLSA-202003-65 vendor-advisory
- https://github.com/FFmpeg/FFmpeg/commit/e724bd1dd9efea3abb8586d6644ec07694afceae