imPC@ndo IT

Tracker / CVE-2017-16939

CVE-2017-16939

High 7.8

The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

Affected products and versions

debian debian_linux
linux linux_kernel · 2.6.28 → 3.2.97
linux linux_kernel · 3.17 → 3.18.86
linux linux_kernel · 3.19 → 4.1.48
linux linux_kernel · 3.3 → 3.16.52
linux linux_kernel · 4.10 → 4.13.11
linux linux_kernel · 4.2 → 4.4.104
linux linux_kernel · 4.5 → 4.9.60

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