CVE-2016-5824: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 2.2% chance of exploitation in the next 30 days.

libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Libical Project Libical: version 1.0 only
• Red Hat Enterprise Linux Desktop: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Server: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.6 only
• Red Hat Enterprise Linux Server Eus: version 7.6 only
• Red Hat Enterprise Linux Server Tus: version 7.6 only
• Red Hat Enterprise Linux Workstation: version 6.0 only; version 7.0 only

Published 2017-01-27. Last modified 2026-06-17.