Provide references for CVE-2001-0156.
Where can I find more information about CVE-2001-0156?
References are available at: https://exchange.xforce.ibmcloud.com/vulnerabilities/6148, http://www.atstake.com/research/advisories/2001/a021601-1.txt, http://www.securityfocus.com/bid/2402, http://www.vandyke.com/products/vshell/security102.html.