Description
FFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause 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 | 7:4.4-5 | — |
| Debian 13 | ffmpeg | 7:4.4-5 | — |
| Debian 12 | ffmpeg | 7:4.4-5 | — |
| Debian 11 | ffmpeg | 7:4.3.3-0+deb11u1 | DSA-4998-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1 | USN-5472-1 |
| Ubuntu 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1 | USN-5472-1 |
| Ubuntu 18.04 LTS | ffmpeg | 7:3.4.11-0ubuntu0.1 | USN-5472-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ffmpeg | 4.4-r0 | — |
| Alpine v3.23 | ffmpeg | 4.4-r0 | — |
| Alpine v3.22 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.21 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.20 | ffmpeg +1 | 4.4-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.18 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.17 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.16 | ffmpeg +1 | 4.4-r0 | — |
| Alpine v3.15 | ffmpeg | 4.4-r0 | — |
| Alpine v3.14 | ffmpeg | 4.4-r0 | — |
| Alpine v3.13 | ffmpeg | 4.3.3-r0 | — |
Advisories 2
- USN-5472-1 ffmpeg vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4998-1 ffmpeg - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://trac.ffmpeg.org/ticket/7993
- DSA-4998 vendor-advisory