Description
In FFmpeg 4.0.1, improper handling of frame types (other than EAC3_FRAME_TYPE_INDEPENDENT) that have multiple independent substreams in the handle_eac3 function in libavformat/movenc.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to a denial of service or possibly unspecified other impact.
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 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mythtv +2 | No fix yet | — |
| Ubuntu 26.04 LTS | mythtv +2 | No fix yet | — |
| Ubuntu 25.10 | mythtv +2 | No fix yet | — |
| Ubuntu 24.04 LTS | mythtv +2 | No fix yet | — |
| Ubuntu 22.04 LTS | kino +3 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | kino +2 | No fix yet | — |
| Ubuntu 18.04 LTS | ffmpeg | 7:3.4.4-0ubuntu0.18.04.1 | — |
| Ubuntu 18.04 LTS | kino +2 | No fix yet | — |
| Ubuntu 16.04 LTS | ffmpeg | 7:2.8.15-0ubuntu0.16.04.1 | — |
| Ubuntu 16.04 LTS | kino +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | ffmpeg | 3.4.2-4.5.1 | SUSE-SU-2018:2305-1 |
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
- SUSE-SU-2018:2305-1 Security update for ffmpeg SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/FFmpeg/FFmpeg/commit/ed22dc22216f74c75ee7901f82649e1ff725ba50
- DSA-4249 vendor-advisory
- 104675 vdb-entry