Updated mariadb packages fix security vulnerabilities

Difficult to exploit vulnerability in MariaDB Server allows high privileged attacker with logon to the infrastructure where MariaDB Server executes to compromise MariaDB Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MariaDB Server accessible data (CVE-2017-10268). Easily exploitable vulnerability in MariaDB Server allows low privileged attacker with network access via multiple protocols to compromise MariaDB Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MariaDB Server (CVE-2017-10378).