CVE-2019-3824: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 2.8% chance of exploitation in the next 30 days.

A flaw was found in the way an LDAP search expression could crash the shared LDAP server process of a samba AD DC in samba before version 4.10. An authenticated user, having read permissions on the LDAP server, could use this flaw to cause denial of service.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 8.0 only
• Samba Samba: before 4.10.0 (fixed in 4.10.0)

Published 2019-03-06. Last modified 2026-06-17.