An unspecified vulnerability in the Server Locking subcomponent of Oracle MySQL allows remote authenticated attackers to cause a denial of service. This flaw affects MySQL 5.1.67 and earlier, 5.5.29 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
Statement: On Red Hat Enterprise Linux 5.10, new MySQL 5.5 packages are available which are not vulnerable to this issue. Future updates for MySQL 5.0 will no longer be made available (mysql-5.0.* and related packages); security advisories will be provided only for MySQL 5.5. Please refer to https://rhn.redhat.com/errata/RHEA-2013-1330.html for further information.