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USN-2988-1: LXD vulnerabilities

USN-2988-1: LXD vulnerabilities

Ubuntu Security Notice USN-2988-1

31st May, 2016

lxd vulnerabilities

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

Summary

Several security issues were fixed in LXD.

Software description

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 version:

Ubuntu 16.04 LTS:
lxd

2.0.2-0ubuntu1~16.04.1
Ubuntu 15.10:
lxd

0.20-0ubuntu4.2

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.

References

CVE-2016-1581,

CVE-2016-1582

Source: USN-2988-1: LXD vulnerabilities

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