CVE-2016-8655: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 11.1% chance of exploitation in the next 30 days.

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 16.10 only
• Linux Linux Kernel: from 3.2, before 3.2.85 (fixed in 3.2.85); from 3.3, before 3.10.106 (fixed in 3.10.106); from 3.11, before 3.12.69 (fixed in 3.12.69); from 3.13, before 3.16.40 (fixed in 3.16.40); from 3.17, before 3.18.46 (fixed in 3.18.46); from 3.19, before 4.1.37 (fixed in 4.1.37); …

Published 2016-12-08. Last modified 2026-06-17.