Description
An inconsistent bits-per-sample value in the ff_mpeg4_decode_picture_header function in libavcodec/mpeg4videodec.c in FFmpeg 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.
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 | 7:4.0.1-2 | — |
| Debian 13 | ffmpeg | 7:4.0.1-2 | — |
| Debian 12 | ffmpeg | 7:4.0.1-2 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.23 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.22 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.21 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.20 | ffmpeg +1 | 4.0.1-r0 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.18 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.17 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.16 | ffmpeg +1 | 4.0.1-r0 | — |
| Alpine v3.15 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.14 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.13 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.12 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.11 | ffmpeg | 4.0.1-r0 | — |
| Alpine v3.10 | ffmpeg | 4.0.1-r0 | — |