Shaun Nichols, reporting for The Register: A group of German researchers have devised a method to thwart the VM security in AMD’s server chips. Dubbed SEVered (PDF), the attack would potentially allow an attacker, or malicious admin who had access to the hypervisor, the ability to bypass AMD’s Secure Encrypted Virtualization (SEV) protections. The problem, say Fraunhofer AISEC researchers Mathias Morbitzer, Manuel Huber, Julian Horsch and Sascha Wessel, is that SEV, which is designed to isolate VMs from the prying eyes of the hypervisor, doesn’t fully isolate and encrypt the VM data within the physical memory itself.
of this story at Slashdot.
Source:: Slashdot