| Name | CVE-2014-8541 |
| Description | libavcodec/mjpegdec.c in FFmpeg before 2.4.2 considers only dimension differences, and not bits-per-pixel differences, when determining whether an image size has changed, which allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted MJPEG data. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 773626 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ffmpeg (PTS) | bullseye | 7:4.3.7-0+deb11u1 | fixed |
| bullseye (security) | 7:4.3.8-0+deb11u1 | fixed |
| bookworm, bookworm (security) | 7:5.1.6-0+deb12u1 | fixed |
| sid, trixie | 7:7.1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ffmpeg | source | squeeze | (unfixed) | end-of-life | | |
| ffmpeg | source | (unstable) | 7:2.4.3-1 | | | |
| libav | source | wheezy | (not affected) | | | |
| libav | source | (unstable) | 6:11.2-1 | | | 773626 |
Notes
[squeeze] - ffmpeg <end-of-life> (Backports to 0.5.x not useful, too many checks missing)
[wheezy] - libav <not-affected> (Vulnerable code not present)
ffmpeg: https://git.videolan.org/?p=ffmpeg.git;a=commit;h=5c378d6a6df8243f06c87962b873bd563e58cd39
libav: https://git.libav.org/?p=libav.git;a=commit;h=809c3023b699c54c90511913d3b6140dd2436550