CVE-2017-2292

Versions of MCollective prior to 2.10.4 deserialized YAML from agents
without calling safe_load, allowing the potential for arbitrary code
execution on the server. The fix for this is to call YAML.safe_load on
input. This has been tested in all Puppet-supplied MCollective plugins, but
there is a chance that third-party plugins could rely on this insecure
behavior.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866711&gt;