CVE-2018-18073

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-10-15 · updated 2026-06-17
Weakness: CWE-200

Description

Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

Affected products

Artifex Ghostscript: through 9.25
Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
Debian Linux: 8.0, 9.0
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=34cc326eb2c5695833361887fe0b32e8d987741c
http://packetstormsecurity.com/files/149758/Ghostscript-Exposed-System-Operators.html
http://www.openwall.com/lists/oss-security/2018/10/10/12
https://access.redhat.com/errata/RHSA-2018:3834
https://bugs.chromium.org/p/project-zero/issues/detail?id=1690
https://bugs.ghostscript.com/show_bug.cgi?id=699927
https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html
https://usn.ubuntu.com/3803-1/
https://www.debian.org/security/2018/dsa-4336
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=34cc326eb2c5695833361887fe0b32e8d987741c
http://packetstormsecurity.com/files/149758/Ghostscript-Exposed-System-Operators.html
http://www.openwall.com/lists/oss-security/2018/10/10/12

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