CVE-2020-14373 Use after free in ghostscript

Medium 5.5 Published 3 Sep 2020 Updated 4 Aug 2024

A local attacker can cause a denial of service by supplying a specially crafted PDF file to Ghostscript.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2020-14373?

CVE-2020-14373 is a medium-severity use after free vulnerability in Artifex Ghostscript, published on 3 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A use after free was found in igc_reloc_struct_ptr() of psi/igc.c of ghostscript-9.25. A local attacker could supply a specially crafted PDF file to cause a denial of service.

Weakness: CWE-416

Which versions are affected by CVE-2020-14373?

It affects 2 products.

Products include Artifex Ghostscript, Redhat Enterprise Linux.

How do I fix CVE-2020-14373?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-14373 being exploited?

There is no known exploitation of CVE-2020-14373 in the wild and no public exploit code.

All Artifex Ghostscript vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-14373, GHSA-qpgp-38q3-x9pp.