CVE-2016-4486: Canonical Ubuntu Linux

Low severity, CVSS 3.3. EPSS: 1.7% chance of exploitation in the next 30 days.

The rtnl_fill_link_ifmap function in net/core/rtnetlink.c in the Linux kernel before 4.5.5 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only; version 16.04 only
• Linux Linux Kernel: up to and including 4.5.4
• Novell Suse Linux Enterprise Debuginfo: version 11.0 only
• Novell Suse Linux Enterprise Desktop: version 12.0 only
• Novell Suse Linux Enterprise Live Patching: version 12.0 only
• Novell Suse Linux Enterprise Module For Public Cloud: version 12.0 only
• Novell Suse Linux Enterprise Real Time Extension: version 12.0 only
• Novell Suse Linux Enterprise Server: version 11.0 only; version 12.0 only
• Novell Suse Linux Enterprise Software Development Kit: version 11.0 only; version 12.0 only
• Novell Suse Linux Enterprise Workstation Extension: version 12.0 only

Published 2016-05-23. Last modified 2026-06-17.