Metalink note 290738.1 has the details - to quote -
Do I need to sign up for this process?
If you are already subscribed to MetaLink, no action is required. If you are a customer with an active support contract for their Oracle licenses but are not yet registered for MetaLink support, you can register for access today.
Customers who do not have an active support contract will not have access to the patches. Please contact your account representative if you are interested in setting up an active support contract, or have additional support questions.
Hope that helps.