Provide references for CVE-2011-1939.
Where can I find more information about CVE-2011-1939?
References are available at: http://www.securityfocus.com/bid/47919, https://security-tracker.debian.org/tracker/CVE-2011-1939, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1939, https://access.redhat.com/security/cve/cve-2011-1939, http://security.gentoo.org/glsa/glsa-201408-01.xml, https://framework.zend.com/security/advisory/ZF2011-02, https://bugs.php.net/bug.php?id=47802.