Oracle MySQL is vulnerable to denial of service(DoS) attacks. A remote authenticated user could exploit a flaw in the Server: Optimizer component which allows unauthorized attackers to cause frequently repeatable crash on the target system.
www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html#AppendixMSQL
www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html#AppendixMSQL
www.securityfocus.com/bid/97779
www.securitytracker.com/id/1038287
access.redhat.com/errata/RHSA-2017:2787
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1477575
bugzilla.redhat.com/show_bug.cgi?id=1482122
dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-35.html
dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-36.html
dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-37.html