CVE-2017-11473: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Buffer overflow in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c in the Linux kernel through 3.2 allows local users to gain privileges via a crafted ACPI table.

Affected products

• Canonical Ubuntu Linux: version 14.04 only
• Linux Linux Kernel: before 3.2.95 (fixed in 3.2.95); from 3.3, before 3.16.50 (fixed in 3.16.50); from 3.17, before 3.18.63 (fixed in 3.18.63); from 3.19, before 4.1.44 (fixed in 4.1.44); from 4.2, before 4.4.79 (fixed in 4.4.79); from 4.5, before 4.9.40 (fixed in 4.9.40); …

Published 2017-07-20. Last modified 2026-06-17.