Unspecified vulnerability in Oracle MySQL 5.1.67 and earlier, 5.5.29 and earlier, and 5.6.10 and earlier allows remote authenticated users to affect confidentiality, integrity, and availability via unknown vectors related to Information Schema.
http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
http://security.gentoo.org/glsa/glsa-201308-06.xml