CVE-2012-0962: Canonical Ubuntu Linux

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

Aptdaemon 0.43 in Ubuntu 11.10 and 12.04 LTS uses short IDs when importing PPA GPG keys from a keyserver, which allows remote attackers to install arbitrary package repository GPG keys via a man-in-the-middle (MITM) attack.

Affected products

• Canonical Ubuntu Linux: version 11.10 only; version 12.04 only
• Sebastian Heinlein Aptdaemon: version 0.43 only

Published 2012-12-26. Last modified 2026-06-16.