CVE-2015-1330: Canonical Ubuntu Linux

Medium severity, CVSS 6.8. EPSS: 1.4% chance of exploitation in the next 30 days.

unattended-upgrades before 0.86.1 does not properly authenticate packages when the (1) force-confold or (2) force-confnew dpkg options are enabled in the DPkg::Options::* apt configuration, which allows remote man-in-the-middle attackers to upload and execute arbitrary packages via unspecified vectors.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only; version 15.04 only
• Debian Unattended-Upgrades: up to and including 0.86

Published 2015-07-01. Last modified 2026-06-17.