Provide references for CVE-2016-6893.
Where can I find more information about CVE-2016-6893?
References are available at: http://www.debian.org/security/2016/dsa-3668, https://bugs.launchpad.net/bugs/1614841, http://www.securityfocus.com/bid/92731, http://www.securitytracker.com/id/1036728.