Provide references for CVE-2009-4656.
Where can I find more information about CVE-2009-4656?
References are available at: http://www.vupen.com/english/advisories/2009/2681, http://secunia.com/advisories/36728, https://exchange.xforce.ibmcloud.com/vulnerabilities/53310, http://www.exploit-db.com/exploits/9691.