CVE-2015-3406: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

The PGP signature parsing in Module::Signature before 0.74 allows remote attackers to cause the unsigned portion of a SIGNATURE file to be treated as the signed portion via unspecified vectors.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only; version 15.04 only
• Module-Signature Project Module-Signature: before 0.74 (fixed in 0.74)

Published 2019-11-29. Last modified 2026-06-17.