CVE-1999-0872: Caldera Openlinux

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

Buffer overflow in Vixie cron allows local users to gain root access via a long MAILTO environment variable in a crontab file.

Affected products

• Caldera Openlinux: version 2.2 only
• Debian Debian Linux: version 2.1 only; version 2.2 only
• Paul Vixie Vixie Cron: version 3.0_pl1 only
• Red Hat Linux: version 4.0 only; version 4.1 only; version 4.2 only; version 5.0 only; version 5.1 only; version 5.2 only; …

Published 1999-08-25. Last modified 2026-06-16.