| Name | CVE-2018-13305 |
| Description | In FFmpeg 4.0.1, due to a missing check for negative values of the mquant variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to an information disclosure or a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ffmpeg (PTS) | stretch (security) | 7:3.2.18-0+deb9u1 | fixed |
| stretch (lts), stretch | 7:3.2.19-0+deb9u5 | fixed |
| buster, buster (lts) | 7:4.1.11-0+deb10u2 | fixed |
| buster (security) | 7:4.1.11-0+deb10u1 | fixed |
| bullseye | 7:4.3.7-0+deb11u1 | fixed |
| bullseye (security) | 7:4.3.8-0+deb11u1 | fixed |
| bookworm (security), bookworm | 7:5.1.6-0+deb12u1 | fixed |
| sid, trixie | 7:7.1-3 | fixed |
| libav (PTS) | jessie, jessie (lts) | 6:11.12-1~deb8u9 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ffmpeg | source | (unstable) | (not affected) | | | |
| libav | source | wheezy | (unfixed) | end-of-life | | |
| libav | source | jessie | (not affected) | | | |
| libav | source | (unstable) | (unfixed) | | | |
Notes
- ffmpeg <not-affected> (Vulnerable code not present)
[jessie] - libav <not-affected> (vulnerable code is not present)
https://github.com/FFmpeg/FFmpeg/commit/d08d4a8c7387e758d439b0592782e4cfa2b4d6a4
https://github.com/FFmpeg/FFmpeg/commit/d08d4a8c7387e758d439b0592782e4cfa2b4d6a4#commitcomment-30094223