CVE-2019-19920: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 3.2% chance of exploitation in the next 30 days.

sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). This issue is similar to CVE-2018-11805.

Affected products

• Canonical Ubuntu Linux: version 16.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Sa-Exim Project Sa-Exim: version 4.2.1 only

Published 2019-12-22. Last modified 2026-06-17.