CVE-2013-1062: Canonical Ubuntu Linux

Medium severity, CVSS 4.6. EPSS: 0.4% chance of exploitation in the next 30 days.

ubuntu-system-service 0.2.4 before 0.2.4.1. 0.2.3 before 0.2.3.1, and 0.2.2 before 0.2.2.1 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 12.10 only; version 13.04 only
• Michael Vogt Ubuntu-System-Service: version 0.2.2 only; version 0.2.3 only; version 0.2.4 only

Published 2013-10-03. Last modified 2026-06-16.