PCRE is vulnerable to denial of service (DoS). The vulnerability exists when parsing a malicious regular expression.
rhn.redhat.com/errata/RHSA-2016-2750.html
vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
www.openwall.com/lists/oss-security/2015/11/29/1
www.oracle.com/technetwork/topics/security/cpuapr2016-2881694.html#AppendixMSQL
www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html#AppendixMSQL
www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html#AppendixMSQL
access.redhat.com/errata/RHSA-2016:1132
access.redhat.com/security/cve/CVE-2016-3452
access.redhat.com/security/cve/CVE-2016-3459
access.redhat.com/security/cve/CVE-2016-3471
access.redhat.com/security/cve/CVE-2016-5444
access.redhat.com/security/updates/classification/#important
bto.bluecoat.com/security-advisory/sa128
mariadb.com/kb/en/mariadb/mariadb-10021-release-notes/
mariadb.com/kb/en/mariadb/mariadb-10022-release-notes/
mariadb.com/kb/en/mariadb/mariadb-10023-release-notes/
mariadb.com/kb/en/mariadb/mariadb-10024-release-notes/
mariadb.com/kb/en/mariadb/mariadb-10025-release-notes/
security.gentoo.org/glsa/201607-02