CVE-2016-0611
Unspecified vulnerability in Oracle MySQL 5.6.27 and earlier and 5.7.9 allows remote authenticated users to affect availability via unknown vectors related to Optimizer.
Date published : 2016-01-20
http://www.securityfocus.com/bid/81164
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html