Description
The ff_rv34_decode_init_thread_copy function in libavcodec/rv34.c in FFmpeg before 2.7.2 does not initialize certain structure members, which allows remote attackers to cause a denial of service (invalid pointer access) or possibly have unspecified other impact via crafted (1) RV30 or (2) RV40 RealVideo 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 | 7:2.7.2-1 | — |
| Debian 13 | ffmpeg | 7:2.7.2-1 | — |
| Debian 12 | ffmpeg | 7:2.7.2-1 | — |
| Debian 8 | libav | 6:11.12-1~deb8u2 | DLA-1611-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | libav | No fix yet | — |
Advisories 1
- DLA-1611-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026