OpenStack Neutron would allow unintended access to other tenant networks.
Aaron Rosen discovered that OpenStack Neutron did not properly perform authorization checks when creating ports when using plugins relying on the l3-agent. A remote authenticated attacker could exploit this to access the network of other tenants.
5 May 2014
A security issue affects these releases of Ubuntu and its derivatives:
OpenStack Neutron would allow unintended access to other tenant networks.
Aaron Rosen discovered that OpenStack Neutron did not properly perform authorization checks when creating ports when using plugins relying on the l3-agent. A remote authenticated attacker could exploit this to access the network of other tenants.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon