CVE-2020-15900: Artifex Ghostscript

Critical severity, CVSS 9.8. EPSS: 5.2% chance of exploitation in the next 30 days.

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.

Affected products

• Artifex Ghostscript: version 9.50 only; version 9.52 only
• Canonical Ubuntu Linux: version 20.04 only
• Opensuse Leap: version 15.1 only; version 15.2 only

Published 2020-07-28. Last modified 2026-06-17.