CVE-2018-11508: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.7% chance of exploitation in the next 30 days.

The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to obtain sensitive information from kernel memory via adjtimex.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 17.10 only; version 18.04 only
• Linux Linux Kernel: before 4.16.9 (fixed in 4.16.9)

Published 2018-05-28. Last modified 2026-06-17.