Well, this isn't great. I'm not competent to comment much, but as best I can figure, this hardware flaw is endemic to ALL Intel processors produced in the last decade, and represents a potentially dire security threat.
"There is presently an embargoed security bug impacting apparently all contemporary [Intel] CPU architectures that implement virtual memory, requiring hardware changes to fully resolve. Urgent development of a software mitigation is being done in the open and recently landed in the Linux kernel, and a similar mitigation began appearing in NT kernels in November. In the worst case the software fix causes huge slowdowns in typical workloads."
"There are hints the attack impacts common virtualisation environments including Amazon EC2 and Google Compute Engine..."
