CVE-2017-15275: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 21.4% chance of exploitation in the next 30 days.

Samba before 4.7.3 might allow remote attackers to obtain sensitive information by leveraging failure of the server to clear allocated heap memory.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.04 only; version 17.10 only
• Debian Debian Linux: version 8.0 only; version 9.0 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 Workstation: version 6.0 only; version 7.0 only
• Samba Samba: from 3.6.0, before 4.5.15 (fixed in 4.5.15); from 4.6.0, before 4.6.11 (fixed in 4.6.11); from 4.7.0, before 4.7.3 (fixed in 4.7.3)

Published 2017-11-27. Last modified 2026-06-17.