CVE-2018-15909: Artifex Ghostscript

High severity, CVSS 7.8. EPSS: 3% chance of exploitation in the next 30 days.

In Artifex Ghostscript 9.23 before 2018-08-24, a type confusion using the .shfill operator could be used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code.

Affected products

• Artifex Ghostscript: up to and including 9.23
• Artifex Gpl Ghostscript: before 9.26 (fixed in 9.26)
• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only
• Debian Debian Linux: version 8.0 only
• Pulse Secure Pulse Connect Secure: from 8.2r1.0, before 8.2r12.1 (fixed in 8.2r12.1); from 8.3r1, before 8.3r7.1 (fixed in 8.3r7.1); from 9.0r1, before 9.0r3.4 (fixed in 9.0r3.4)
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.6 only
• Red Hat Enterprise Linux Server Eus: version 7.6 only
• Red Hat Enterprise Linux Server Tus: version 7.6 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2018-08-27. Last modified 2026-06-17.