CVE-2020-22021
Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.
Date published : 2021-05-26
https://trac.ffmpeg.org/ticket/8240
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html