It was discovered that parsing errors in the mp4 module of Nginx, a high-performance web and reverse proxy server, could result in denial of service, memory disclosure or potentially the execution of arbitrary code when processing a malformed mp4 file.
This module is only enabled in the nginx-extras binary package.
In addition the following vulnerability has been fixed.
For Debian 10 buster, these problems have been fixed in version 1.14.2-2+deb10u5.
We recommend that you upgrade your nginx packages.
For the detailed security status of nginx please refer to its security tracker page at: https://security-tracker.debian.org/tracker/nginx
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS