Unspecified vulnerability in Oracle MySQL Server 5.5.43 and earlier and 5.6.24 and earlier allows remote authenticated users to affect integrity via unknown vectors related to Server : Security : Privileges.
http://www.ubuntu.com/usn/USN-2781-1
http://www.securityfocus.com/bid/77187
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html