Provide references for CVE-2015-6836.
Where can I find more information about CVE-2015-6836?
References are available at: http://www.securitytracker.com/id/1033548, http://www.php.net/ChangeLog-5.php, https://bugs.php.net/bug.php?id=70388, http://www.securityfocus.com/bid/76644, http://www.debian.org/security/2015/dsa-3358, https://security.gentoo.org/glsa/201606-10.