Docker was updated to 1.8.3 to fix two security issues.

The following vulnerabilities were fixed:

* CVE-2014-8178: layer IDs lead to local graph poisoning (boo#949660)
* CVE-2014-8179: manifest validation and parsing logic errors allow pull-by-digest validation bypass

In addition, the following change is included:

* --disable-legacy-registry to prevent a daemon from using a v1 registry