psi/zfile.c in Artifex Ghostscript before 9.21rc1 permits the status command even if -dSAFER is used, which might allow remote attackers to determine the existence and size of arbitrary files, a similar issue to CVE-2016-7977.
https://www.debian.org/security/2018/dsa-4336
https://usn.ubuntu.com/3768-1/
https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
https://bugs.ghostscript.com/show_bug.cgi?id=697193
https://access.redhat.com/errata/RHSA-2019:2281
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=b60d50b7567369ad856cebe1efb6cd7dd2284219