CVE-2018-16863

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-12-03 · updated 2026-06-17
Weakness: CWE-184

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.

Affected products

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-2018:3761
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16863
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-2018:3761
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16863

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