USN-3195-1: Nova-LXD vulnerability

10 February 2017

nova-lxd vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 16.04 LTS

Summary

Nova-LXD could allow unintended access to LXD instances over the network.

Software Description

  • nova-lxd - Openstack Compute - LXD container hypervisor support

Details

James Page discovered that Nova-LXD incorrectly set up virtual network devices when creating LXD instances. This could result in an unintended firewall configuration.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS
python-nova-lxd - 13.2.0-0ubuntu1.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes for new instances. However, existing instances will still be affected and must be manually updated.

References