system
Provide references for <CVE-2020-22021>.
user
Where can I find more information about <CVE-2020-22021>?
assistant
References are available at: https://trac.ffmpeg.org/ticket/8240, https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html, https://www.debian.org/security/2021/dsa-4990.