A heap-based Buffer Overflow vulnerability exists FFmpeg 4.2 at libavfilter/vf_floodfill.c, which might lead to memory corruption and other potential consequences.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22034
Reference (s):
- DEBIAN:DSA-4990
- URL: https://www.debian.org/security/2021/dsa-4990
- https://trac.ffmpeg.org/ticket/8236