MariaDB: Remote code execution

Background

MariaDB is an enhanced, drop-in replacement for MySQL.

Description

It was discovered that MariaDB did not properly validate the content of a packet received from a server.

Impact

A remote attacker could send a specially crafted packet to WSREP service, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All MariaDB 10.5.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/mariadb-10.5.6:10.5"

All MariaDB 10.4.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/mariadb-10.4.13-r3:10.4"

All MariaDB 10.3.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/mariadb-10.3.23-r3:10.3"

All MariaDB 10.2.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/mariadb-10.2.22-r3:10.2"