CVE-2015-8768: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 2.7% chance of exploitation in the next 30 days.

click/install.py in click does not require files in package filesystem tarballs to start with ./ (dot slash), which allows remote attackers to install an alternate security policy and gain privileges via a crafted package, as demonstrated by the test.mmrow app for Ubuntu phone.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 15.04 only
• Click Project Click: affected versions not specified

Published 2017-02-13. Last modified 2026-06-17.