USN-3300-1: juju-core vulnerability

Ubuntu Security Notice USN-3300-1

26th May, 2017

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

The system could be made to run programs as an administrator.

Ryan Beisner discovered juju did not set permissions on a Unix domain
socket. A local attacker could use this flaw to gain administrative
privileges.

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

Ubuntu 17.04:: juju

2.0.2-0ubuntu2.1; juju-2.0

2.0.2-0ubuntu2.1
Ubuntu 16.10:: juju

2.0.2-0ubuntu0.16.10.2; juju-2.0

2.0.2-0ubuntu0.16.10.2
Ubuntu 16.04 LTS:: juju

2.0.2-0ubuntu0.16.04.2; juju-2.0

2.0.2-0ubuntu0.16.04.2
Ubuntu 14.04 LTS:: juju

1.25.6-0ubuntu1.14.04.2; juju-core

1.25.6-0ubuntu1.14.04.2; juju-local

1.25.6-0ubuntu1.14.04.2; juju-local-kvm

1.25.6-0ubuntu1.14.04.2

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

After a standard system update you need to restart juju-core to make
all the necessary changes.