| Name | CVE-2020-22027 |
| Description | A heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c, which might lead to memory corruption and other potential consequences. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4990-1 |
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 | vulnerable |
| stretch (lts), stretch | 7:3.2.19-0+deb9u3 | vulnerable |
| buster | 7:4.1.9-0+deb10u1 | fixed |
| buster (security) | 7:4.1.11-0+deb10u1 | fixed |
| bullseye (security), bullseye | 7:4.3.6-0+deb11u1 | fixed |
| bookworm (security), bookworm | 7:5.1.4-0+deb12u1 | fixed |
| trixie | 7:6.1.1-1 | fixed |
| sid | 7:6.1.1-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ffmpeg | source | buster | 7:4.1.8-0+deb10u1 | | DSA-4990-1 | |
| ffmpeg | source | (unstable) | 7:4.3-2 | | | |
Notes
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=e787f8fd7ee99ba0c3e0f086ce2ce59eea7ed86c
https://trac.ffmpeg.org/ticket/8242
[stretch] - ffmpeg <postponed> (Possibly not-affected because the code changed, recheck the PoC with ASAN build)