Description
Integer signedness error in the add_bytes_l2_c function in libavcodec/pngdsp.c in FFmpeg before 2.1 allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted PNG 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 7 | libav | 6:0.8.10-1 | DSA-2855-1 |
Advisories 1
- DSA-2855-1 libav - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2855 vendor-advisory
- GLSA-201603-06 vendor-advisory
- https://github.com/FFmpeg/FFmpeg/commit/86736f59d6a527d8bc807d09b93f971c0fe0bb07
- http://ffmpeg.org/security.html
- [oss-security] 20131208 Re: CVE Request: FFmpeg 2.1 multiple problems mailing-list
- https://trac.ffmpeg.org/ticket/2919
- http://git.libav.org/?p=libav.git%3Ba=blob%3Bf=Changelog%3Bhb=refs/tags/v9.11
- [oss-security] 20131126 CVE Request: FFmpeg 2.1 multiple problems mailing-list