Provide references for CVE-2011-1647.
Where can I find more information about CVE-2011-1647?
References are available at: http://www.securityfocus.com/bid/47985, http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f190.shtml, http://www.securitytracker.com/id?1025565.