An issue was discovered in Artifex MuJS 1.0.5. It has unlimited recursion because the match function in regexp.c lacks a depth check.
https://security.gentoo.org/glsa/202007-52
https://github.com/ccxvii/mujs/commit/00d4606c3baf813b7b1c176823b2729bf51002a2
https://bugs.ghostscript.com/show_bug.cgi?id=700937
http://www.securityfocus.com/bid/108093
http://www.ghostscript.com/cgi-bin/findgit.cgi?00d4606c3baf813b7b1c176823b2729bf51002a2