CVE-2017-7184: Linux Kernel

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

Affected products

• Linux Linux Kernel: version 4.8 only; before 3.2.89 (fixed in 3.2.89); from 3.3, before 3.10.106 (fixed in 3.10.106); from 3.11, before 3.12.73 (fixed in 3.12.73); from 3.13, before 3.16.44 (fixed in 3.16.44); from 3.17, before 3.18.49 (fixed in 3.18.49); …

Published 2017-03-19. Last modified 2026-06-17.