Description
libavcodec/utvideodec.c in FFmpeg before 2.5.2 does not check for a zero value of a slice height, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Ut Video data, related to the (1) restore_median and (2) restore_median_il functions.
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 | 7:2.5.1-1 | — |
| Debian 13 | ffmpeg | 7:2.5.1-1 | — |
| Debian 12 | ffmpeg | 7:2.5.1-1 | — |
| 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 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libav-tools | 12.3-1.17 | openSUSE-SU-2024:10926-1 |
Advisories 2
- DSA-3189-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10926-1 libav-tools-12.3-1.17 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=3881606240953b9275a247a1c98a567f3c44890f
- USN-2534-1 vendor-advisory
- GLSA-201603-06 vendor-advisory