CVE-2018-16863

Name: CVE-2018-16863
Creator: NVD / NIST
Published: 2018-12-03T17:29:00.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.25%

Last modified Jun 17, 2026

CVE-2018-16863 is a vulnerability of currently unknown severity. It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.

Metrics

EPSS Probability

1.25%

65.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Artifex	Ghostscript	9.07
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	7.0

References

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=520bb0ea7519
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486
https://access.redhat.com/errata/RHSA-2018:3761Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16863Issue Tracking, Patch, Third Party Advisory
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=520bb0ea7519
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486
https://access.redhat.com/errata/RHSA-2018:3761Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16863Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Dec 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16863?

How severe is CVE-2018-16863?

Severity scoring for CVE-2018-16863 is pending analysis. The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16863?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16863?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST