Oracle MySQL is vulnerable to denial of service attacks. A remote, authenticated attacker could exploit the flawed Optimizer
component to cause a hang or frequently repeatable crash resulting in denial of service conditions.
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html#AppendixMSQL
www.securityfocus.com/bid/101316
www.securitytracker.com/id/1039597
access.redhat.com/errata/RHSA-2017:3265
access.redhat.com/errata/RHSA-2017:3442
access.redhat.com/security/updates/classification/#important
dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-38.html
security.netapp.com/advisory/ntap-20171019-0002/