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==========================================================================
Ubuntu Security Notice USN-2988-1
May 31, 2016

lxd vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10

Summary:

Several security issues were fixed in LXD.

Software Description:
- lxd: Container hypervisor based on LXC

Details:

Robie Basak discovered that LXD incorrectly set permissions when setting up
a loop based ZFS pool. A local attacker could use this issue to copy and
read the data of any LXD container. (CVE-2016-1581)

Robie Basak discovered that LXD incorrectly set permissions when switching
an unprivileged container into privileged mode. A local attacker could use
this issue to access any world readable path in the container directory,
including setuid binaries. (CVE-2016-1582)

Update instructions:

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

Ubuntu 16.04 LTS:
  lxd                             2.0.2-0ubuntu1~16.04.1

Ubuntu 15.10:
  lxd                             0.20-0ubuntu4.2

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2988-1
  CVE-2016-1581, CVE-2016-1582

Package Information:
  https://launchpad.net/ubuntu/+source/lxd/2.0.2-0ubuntu1~16.04.1
  https://launchpad.net/ubuntu/+source/lxd/0.20-0ubuntu4.2



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