Description
Off-by-one error in libavcodec/smc.c in FFmpeg before 2.4.2 allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted Quicktime Graphics (aka SMC) video 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 | 7:2.4.3-1 | — |
| Debian 13 | ffmpeg | 7:2.4.3-1 | — |
| Debian 12 | ffmpeg | 7:2.4.3-1 | — |
| Debian 7 | libav | 6:0.8.17-1 | DSA-3189-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | libav | 6:9.18-0ubuntu0.14.04.1 | — |
Advisories 1
- DSA-3189-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026