Debian 10 Buster: DLA-3337-1 Critical: MariaDB 10.3 Performance Issue

A new MariaDB minor maintenance release 10.3.38 has been released. It
includes fix for a major performance/memory consumption issue (MDEV-29988).

For further details, see the MariaDB 10.3 release notes:

https://mariadb.com/docs/release-notes/community-server/old-releases/release-notes-mariadb-10-3-series/mariadb-10-3-37-release-notes
https://mariadb.com/docs/release-notes/community-server/old-releases/release-notes-mariadb-10-3-series/mariadb-10-3-38-release-notes

For Debian 10 buster, this problem has been fixed in version
1:10.3.38-0+deb10u1.

We recommend that you upgrade your mariadb-10.3 packages.

For the detailed security status of mariadb-10.3 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker

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