Unspecified vulnerability in Oracle MySQL 5.7.13 and earlier allows remote administrators to affect availability via vectors related to Server: Performance Schema, a different vulnerability than CVE-2016-5633.
https://security.gentoo.org/glsa/201701-01
http://www.securitytracker.com/id/1037050
http://www.securityfocus.com/bid/93733
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html