| Name | CVE-2020-20892 |
| Description | An issue was discovered in function filter_frame in libavfilter/vf_lenscorrection.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a division by zero. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3010-1, DSA-5126-1 |
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 |
The information below is based on the following data on fixed versions.
Notes
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=19587c9332f5be4f6bc6d7b2b8ef3fd21dfeaa01 (4.3)
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=439645004bb672a29145621549cb87acdb2f84db (4.1.9)
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=94e502e96b0870177e0af4c1e8718ac71475e374 (3.2.17)
https://trac.ffmpeg.org/ticket/8265