Red Hat Security Advisory 2016-1132-01 – MariaDB is a multi-user, multi-threaded SQL database server. For all practical purposes, MariaDB is binary-compatible with MySQL. MariaDB uses PCRE, a Perl-compatible regular expression library, to implement regular expression support in SQL queries. Security Fix: It was found that the MariaDB client library did not properly check host names against server identities noted in the X.509 certificates when establishing secure connections using TLS/SSL. A man-in-the-middle attacker could possibly use this flaw to impersonate a server to a client.