Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving errorhandler setup. NOTE: this issue exists because of an incomplete fix for CVE-2018-17183.
https://www.exploit-db.com/exploits/45573/
https://www.debian.org/security/2018/dsa-4336
https://usn.ubuntu.com/3803-1/
https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html
https://bugs.ghostscript.com/show_bug.cgi?id=699816
https://bugs.chromium.org/p/project-zero/issues/detail?id=1682&desc=2
https://access.redhat.com/errata/RHSA-2018:3834
http://www.openwall.com/lists/oss-security/2018/10/09/4
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=a6807394bd94
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=a5a9bf8c6a63
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=a54c9e61e7d0