PRIOn knowledge basePRION:CVE-2018-16509Design/Logic Flaw
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect “restoration of privilege” checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the “pipe” instruction.
References
git.ghostscript.com/?p=ghostpdl.git;a=commit;h=5516c614dc33662a2afdc377159f70218e67bde5
git.ghostscript.com/?p=ghostpdl.git;a=commit;h=78911a01b67d590b4a91afac2e8417360b934156
git.ghostscript.com/?p=ghostpdl.git;a=commit;h=79cccf641486a6595c43f1de1cd7ade696020a31
git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=520bb0ea7519aa3e79db78aaf0589dae02103764
seclists.org/oss-sec/2018/q3/142
www.securityfocus.com/bid/105122
access.redhat.com/errata/RHSA-2018:2918
access.redhat.com/errata/RHSA-2018:3760
bugs.ghostscript.com/show_bug.cgi?id=699654
lists.debian.org/debian-lts-announce/2018/09/msg00015.html
security.gentoo.org/glsa/201811-12
usn.ubuntu.com/3768-1/
www.artifex.com/news/ghostscript-security-resolved/
www.debian.org/security/2018/dsa-4294
www.exploit-db.com/exploits/45369/
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