Provide references for CVE-2007-4521.
Where can I find more information about CVE-2007-4521?
References are available at: http://secunia.com/advisories/26601, http://www.securitytracker.com/id?1018606, http://downloads.digium.com/pub/asa/AST-2007-021.html, http://www.securityfocus.com/archive/1/477729/100/0/threaded, http://secunia.com/advisories/26602, https://exchange.xforce.ibmcloud.com/vulnerabilities/36261, http://www.vupen.com/english/advisories/2007/2978, http://www.securityfocus.com/bid/25438, http://securityreason.com/securityalert/3065.