An issue was discovered in Artifex MuJS 1.0.5. The Number#toFixed() and numtostr implementations in jsnumber.c have a stack-based buffer overflow.
https://security.gentoo.org/glsa/202007-52
https://github.com/ccxvii/mujs/commit/da632ca08f240590d2dec786722ed08486ce1be6
https://bugs.ghostscript.com/show_bug.cgi?id=700938
http://www.securityfocus.com/bid/108093
http://www.ghostscript.com/cgi-bin/findgit.cgi?da632ca08f240590d2dec786722ed08486ce1be6