Several vulnerabilities have been discovered in the FFmpeg multimedia framework, which could result in denial of service or potentially the execution of arbitrary code if malformed files/streams are processed.
For the oldstable distribution (buster), these problems have been fixed in version 7:4.1.8-0+deb10u1.
We recommend that you upgrade your ffmpeg packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/