CVE-2015-8467: Canonical Ubuntu Linux

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

The samldb_check_user_account_control_acl function in dsdb/samdb/ldb_modules/samldb.c in Samba 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not properly check for administrative privileges during creation of machine accounts, which allows remote authenticated users to bypass intended access restrictions by leveraging the existence of a domain with both a Samba DC and a Windows DC, a similar issue to CVE-2015-2535.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.04 only; version 15.10 only
• Debian Debian Linux: version 7.0 only; version 8.0 only
• Samba Samba: from 4.0.0, before 4.1.22 (fixed in 4.1.22); from 4.2.0, before 4.2.7 (fixed in 4.2.7); from 4.3.0, before 4.3.3 (fixed in 4.3.3)

Published 2015-12-29. Last modified 2026-06-17.