Unspecified vulnerability in Oracle MySQL Server 5.5.42 and earlier, and 5.6.23 and earlier, allows remote authenticated users to affect availability via vectors related to DDL.
https://security.gentoo.org/glsa/201507-19
https://mariadb.com/kb/en/mariadb/mariadb-5543-release-notes/
http://www.ubuntu.com/usn/USN-2575-1
http://www.securityfocus.com/bid/74112
http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.debian.org/security/2015/dsa-3311
http://www.debian.org/security/2015/dsa-3229
http://rhn.redhat.com/errata/RHSA-2015-1665.html
http://rhn.redhat.com/errata/RHSA-2015-1647.html
http://rhn.redhat.com/errata/RHSA-2015-1629.html
http://rhn.redhat.com/errata/RHSA-2015-1628.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html