Provide references for CVE-2017-6637.
Where can I find more information about CVE-2017-6637?
References are available at: http://www.securityfocus.com/bid/98530, https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-pcp5, http://www.securitytracker.com/id/1038515.