Provide references for CVE-2017-3857.
Where can I find more information about CVE-2017-3857?
References are available at: http://www.securitytracker.com/id/1038100, http://www.securityfocus.com/bid/97010, https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-l2tp.