The flaw, which affected the virtual machine monitor (VMM) in Virtual PC, could enable an attacker to use applications running in user-space on a guest OS to access portions of the Virtual PC memory that should be inaccessible to those applications.
For those tracking the growing malicious elements on the Web, Chrome's innovation--and GreenBorder's contribution to the open-source browser--is a technology known as "sandboxing, " a tactic that limits Web applications' access to a computer's memory beyond a virtual border.