OpenStack Compute (nova) launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances, managing networks, and controlling access through users and projects.
It was found that RBAC policies were not enforced in certain methods of the OpenStack Compute EC2 (Amazon Elastic Compute Cloud) API. A remote attacker could use this flaw to escalate their privileges beyond the user group they were originally restricted to. Note that only certain setups using non-default RBAC rules for OpenStack Compute were affected. (CVE-2014-0167)
A side-channel timing attack flaw was found in nova. An attacker could possibly use this flaw to guess valid instance ID signatures, giving them access to details of another instance, by analyzing the response times of requests for instance metadata. This issue only affected configurations that proxy metadata requests via neutron. (CVE-2014-3517)
Red Hat would like to thank the OpenStack project for reporting these issues. Upstream acknowledges Marc Heckmann of Ubisoft as the original reporter of CVE-2014-0167, and Alex Gaynor from Rackspace as the original reporter of CVE-2014-3517.
This update also fixes several bugs and adds one enhancement. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.
All openstack-nova users are advised to upgrade to these updated packages, which correct these issues and add this enhancement.