CVE-2020-3341: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.4% chance of exploitation in the next 30 days.

A vulnerability in the PDF archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.101 - 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a stack buffer overflow read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 18.04 only; version 19.10 only; version 20.04 only
• Cisco Clam Antivirus: from 0.101, up to and including 0.102.2
• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 30 only; version 31 only; version 32 only

Published 2020-05-13. Last modified 2026-06-17.