CVE-2019-3466: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The pg_ctlcluster script in postgresql-common in versions prior to 210 didn't drop privileges when creating socket/statistics temporary directories, which could result in local privilege escalation.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.04 only; version 19.10 only
• Debian Debian Linux: version 9.0 only; version 10.0 only
• PostgreSQL PostgreSQL-Common: before 210 (fixed in 210)

Published 2019-11-20. Last modified 2026-06-17.