CVE-2017-1000407: Canonical Ubuntu Linux

High severity, CVSS 7.4. EPSS: 1.2% chance of exploitation in the next 30 days.

The Linux Kernel 2.6.32 and later are affected by a denial of service, by flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 17.10 only
• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Linux Linux Kernel: from 2.6.32, before 4.15 (fixed in 4.15); version 4.15 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 7.6 only
• Red Hat Enterprise Linux Server Eus: version 7.6 only
• Red Hat Enterprise Linux Server Tus: version 7.6 only
• Red Hat Enterprise Linux Workstation: version 7.0 only
• Red Hat Virtualization Host: version 4.0 only

Published 2017-12-11. Last modified 2026-06-17.