Description
aa_read_header in libavformat/aadec.c in FFmpeg before 3.2.14 and 4.x before 4.1.4 does not check for sscanf failure and consequently allows use of uninitialized variables.
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 | 7:4.1.4-1 | — |
| Debian 13 | ffmpeg | 7:4.1.4-1 | — |
| Debian 12 | ffmpeg | 7:4.1.4-1 | — |
| Debian 10 | ffmpeg | 7:4.1.4-1~deb10u1 | DSA-4502-1 |
| Debian 9 | ffmpeg | 7:3.2.14-1~deb9u1 | DSA-4449-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ffmpeg | 7:4.2.4-1ubuntu0.1 | USN-4431-1 |
| Ubuntu 18.04 LTS | ffmpeg | 7:3.4.8-0ubuntu0.2 | USN-4431-1 |
| Ubuntu 16.04 LTS | ffmpeg | 7:2.8.17-0ubuntu0.1 | USN-4431-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | ffmpeg | 3.4.2-4.27.1 | SUSE-SU-2019:3184-2, SUSE-SU-2019:3184-1 |
| SLES 15 | ffmpeg | 3.4.2-4.27.1 | SUSE-SU-2019:3184-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.23 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.22 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.21 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.20 | ffmpeg +1 | 4.1.4-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.18 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.17 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.16 | ffmpeg +1 | 4.1.4-r0 | — |
| Alpine v3.15 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.14 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.13 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.12 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.11 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.10 | ffmpeg | 4.1.4-r0 | — |
| Alpine v3.9 | ffmpeg | 4.0.6-r0 | — |
Advisories 5
- USN-4431-1 ffmpeg vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4449-1 ffmpeg - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4502-1 ffmpeg - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:3184-1 Security update for ffmpeg SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3184-2 Security update for ffmpeg SUSE / openSUSE Security Updates · May 2, 2025
References
- https://github.com/FFmpeg/FFmpeg/commit/ed188f6dcdf0935c939ed813cf8745d50742014b
- https://github.com/FFmpeg/FFmpeg/compare/a97ea53...ba11e40
- https://git.ffmpeg.org/gitweb/ffmpeg.git/shortlog/n4.1.4
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/9b4004c054964a49c7ba44583f4cee22486dd8f2
- 109317 vdb-entry
- 20190816 [SECURITY] [DSA 4502-1] ffmpeg security update mailing-list
- DSA-4502 vendor-advisory
- GLSA-202003-65 vendor-advisory
- USN-4431-1 vendor-advisory