CVE-2016-2113: Canonical Ubuntu Linux

High severity, CVSS 7.4. EPSS: 2.6% chance of exploitation in the next 30 days.

Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not verify X.509 certificates from TLS servers, which allows man-in-the-middle attackers to spoof LDAPS and HTTPS servers and obtain sensitive information via a crafted certificate.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 15.10 only; version 16.04 only
• Samba Samba: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.0.5 only; …

Published 2016-04-25. Last modified 2026-06-17.