The Ins_MDRP function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document.Referenceshttp://bugs.ghostscript.com/show_bug.cgi?id=698055https://security.gentoo.org/glsa/201811-12http://www.debian.org/security/2017/dsa-3986http://www.securityfocus.com/bid/99992http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=7755e67116e8973ee0e3b22d653df026a84fa01b
