Unspecified vulnerability in Oracle MySQL Server 5.6.16 and earlier allows remote authenticated users to affect availability via unknown vectors related to InnoDB.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-2471
http://www.securityfocus.com/bid/66853
http://www.oracle.com/technetwork/topics/security/cpuapr2014-1972952.html