CVE-2017-12153: Canonical Ubuntu Linux

Medium severity, CVSS 4.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Linux Linux Kernel: up to and including 4.13.3

Published 2017-09-21. Last modified 2026-06-17.