Provide references for CVE-2017-13727.
Where can I find more information about CVE-2017-13727?
References are available at: http://www.securityfocus.com/bid/100524, https://usn.ubuntu.com/3602-1/, http://bugzilla.maptools.org/show_bug.cgi?id=2728, https://www.debian.org/security/2018/dsa-4100.