An anonymous reader quotes InfoWorld: Two critical privilege escalation vulnerabilities in MySQL, MariaDB, and PerconaDB can help take control of the whole server, which is very bad for shared environments... Administrators need to check their database versions, as attackers can chain two critical vulnerabilities and completely take over the server hosting the database... The first vulnerability, a privilege escalation/race condition flaw, gives elevated privileges to a local system user with access to a database and allows them to execute arbitrary code as the database system user. This gives an attacker access to all of the databases on the affected server... The privilege escalation/race condition flaw can be chained with another critical vulnerability, a root privilege escalation vulnerability, to further elevate the system level user to gain root on the server.