imPC@ndo IT

Tracker / CVE-2017-7184

CVE-2017-7184

High 7.8

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 and versions

linux linux_kernel
linux linux_kernel · … → 3.2.89
linux linux_kernel · 3.11 → 3.12.73
linux linux_kernel · 3.13 → 3.16.44
linux linux_kernel · 3.17 → 3.18.49
linux linux_kernel · 3.19 → 4.1.49
linux linux_kernel · 3.3 → 3.10.106
linux linux_kernel · 4.10 → 4.10.8
linux linux_kernel · 4.2 → 4.4.59
linux linux_kernel · 4.5 → 4.9.20

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References