| Name | CVE-2021-33815 |
| Description | dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked. |
| 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) | buster | 7:4.1.9-0+deb10u1 | fixed |
| buster (security) | 7:4.1.11-0+deb10u1 | fixed |
| bullseye | 7:4.3.5-0+deb11u1 | fixed |
| bullseye (security) | 7:4.3.6-0+deb11u1 | fixed |
| bookworm | 7:5.1.3-1 | fixed |
| sid, trixie | 7:6.0-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ffmpeg | source | experimental | (unfixed) | | | |
| ffmpeg | source | (unstable) | (not affected) | | | |
Notes
- ffmpeg <not-affected> (Vulnerable code not present, introduced in cc85ca1cb34)
https://github.com/FFmpeg/FFmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777