Advisories for Pypi/Magnum package

An issue in OpenStack magnum yoga-eom version allows a remote attacker to execute arbitrary code via the cert_manager.py. component.

OpenStack Magnum passes OpenStack credentials into the Heat templates creating its instances. While these should just be used for retrieving the instances' SSL certificates, they allow full API access, though and can be used to perform any API operation the user is authorized to perform.