CVE-2018-16511
A type confusion in "ztype" could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Artifex Ghostscript before 9.24. A type confusion in "ztype" could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.94% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-704
- Affected
- debian/debian linux · artifex/ghostscript · canonical/ubuntu linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS moved from 3.4% on 21 September 2026 to 1.9% on 27 October 2026.
References
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=0edd3d6c634a577db261615a9dc2719bca7f6e01
- http://seclists.org/oss-sec/2018/q3/182Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3650Third Party Advisory
- https://bugs.ghostscript.com/show_bug.cgi?id=699659Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00015.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-12Third Party Advisory
- https://usn.ubuntu.com/3768-1/Third Party Advisory
- https://www.artifex.com/news/ghostscript-security-resolved/Patch, Vendor Advisory
- https://www.debian.org/security/2018/dsa-4288Third Party Advisory
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=0edd3d6c634a577db261615a9dc2719bca7f6e01
- http://seclists.org/oss-sec/2018/q3/182Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3650Third Party Advisory
- https://bugs.ghostscript.com/show_bug.cgi?id=699659Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00015.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-12Third Party Advisory
- https://usn.ubuntu.com/3768-1/Third Party Advisory
- https://www.artifex.com/news/ghostscript-security-resolved/Patch, Vendor Advisory
- https://www.debian.org/security/2018/dsa-4288Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.