Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.5.x allows local users to affect availability via unknown vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/72540
http://www.ubuntu.com/usn/USN-1397-1
http://www.oracle.com/technetwork/topics/security/cpujan2012-366304.html
http://security.gentoo.org/glsa/glsa-201308-06.xml