CVE-2020-27818: Debian Linux

Low severity, CVSS 3.3. EPSS: 1.2% chance of exploitation in the next 30 days.

A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.

Affected products

• Debian Debian Linux: version 9.0 only
• Fedoraproject Extra Packages For Enterprise Linux: version 7.0 only; version 8.0 only
• Fedoraproject Fedora: version 31 only; version 32 only; version 33 only; version 34 only
• Libpng Pngcheck: version 2.4.0 only

Published 2020-12-08. Last modified 2026-06-17.