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CVE-2017-5985

Published: 9 March 2017

lxc-user-nic in Linux Containers (LXC) allows local users with a lxc-usernet allocation to create network interfaces on the host and choose the name of those interfaces by leveraging lack of netns ownership check.

Priority

Medium

Cvss 3 Severity Score

3.3

Score breakdown

Status

Package Release Status
lxc
Launchpad, Ubuntu, Debian
precise Not vulnerable
(lxc-user-nic doesn't exist)
trusty
Released (1.0.9-0ubuntu3)
upstream Needs triage

xenial
Released (2.0.7-0ubuntu1~16.04.2)
yakkety
Released (2.0.7-0ubuntu1~16.10.2)
Patches:
upstream: https://github.com/lxc/lxc/commit/16af238036a5464ae8f2420ed3af214f0de875f9

Severity score breakdown

Parameter Value
Base score 3.3
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N