Unspecified vulnerability in Oracle MySQL 5.1.68 and earlier, 5.5.30 and earlier, and 5.6.10 and earlier allows remote authenticated users to affect availability via unknown vectors related to Data Manipulation Language.
http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
http://security.gentoo.org/glsa/glsa-201308-06.xml