Red Hat Security Advisory 2016-0457-01 – PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. Multiple flaws were discovered in the way PHP performed object unserialization. Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code. Multiple flaws were found in the way the way PHP’s Phar extension parsed Phar archives. A specially crafted archive could cause PHP to crash or, possibly, execute arbitrary code when opened.