"The Xen Project has published a security advisory that could affect millions of virtualized servers running in Amazon’s cloud and other public hosting services. A flaw in the Xen hypervisor could allow a malicious fully virtualized server to read data about other virtualized systems running on the same physical hardware or the hypervisor hosting the virtual machine. The malicious system could also potentially crash the server hosting the virtual machines. A patch, which was privately disclosed last week under embargo, has been issued to correct the issue."

-- source: http://bit.ly/1sNg89a

Cheers, Peter