Updated mariadb packages fix security vulnerabilities

Updated mariadb packages fix security vulnerabilities: A vulnerability in Server: Optimizer contains an easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise the server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) (CVE-2019-2974). A vulnerability in InnoDB contains an Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise the server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) (CVE-2019-2938).