CVE-2018-1084: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

corosync before version 2.4.4 is vulnerable to an integer overflow in exec/totemcrypto.c.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only
• Corosync Corosync: from 2.3.0, before 2.4.4 (fixed in 2.4.4)
• Debian Debian Linux: version 9.0 only
• Red Hat Enterprise Linux Server: version 7.0 only

Published 2018-04-12. Last modified 2026-06-17.