CVE-2018-5345: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 2.2% chance of exploitation in the next 30 days.

A stack-based buffer overflow within GNOME gcab through 0.7.4 can be exploited by malicious attackers to cause a crash or, potentially, execute arbitrary code via a crafted .cab file.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 17.10 only
• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: affected versions not specified
• Gnome Gcab: up to and including 0.7.4
• 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

Published 2018-01-12. Last modified 2026-06-17.