CVE-2017-0901: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 29.4% chance of exploitation in the next 30 days.

RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.4 only; version 7.6 only
• Red Hat Enterprise Linux Server Eus: version 7.4 only; version 7.5 only; version 7.6 only
• Red Hat Enterprise Linux Server Tus: version 7.4 only; version 7.6 only
• Red Hat Enterprise Linux Workstation: version 7.0 only
• Rubygems Rubygems: up to and including 2.6.12

Published 2017-08-31. Last modified 2026-06-17.