An unspecified vulnerability in the Server Optimizer subcomponent of Oracle MySQL allows remote authenticated attackers to cause a denial of service. This flaw affects MySQL 5.1.68 and earlier, 5.5.30 and earlier, and 5.6.10 and earlier. External References: http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html#AppendixMSQL
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2013:0772 https://rhn.redhat.com/errata/RHSA-2013-0772.html