Hacker News new | comments | show | ask | jobs | submit login An X86 Design Flaw Allowing Universal Privilege Escalation (blackhat.com) 167 points by thomnottom 63 days ago | 66 comments Moral_ 63 days ago to demonstrate how to jump malicious code from the paltry ring 0 into the deepest, darkest realms of the processor. So you already have to be in ring 0. Pretty click baity title. ----- zerohp 63 days ago VT-x allows guest operating systems to run in Ring 0. If this exploit works then a guest OS can exploit the hypervisor. ----- tptacek 63 days ago Maybe. VT hypervisors still mediate stuff done in VM kernels. The attack could still work on native OS kernels and still not be effective on VMs. ----- Moral_ 63 days ago Good call didn't tihnk about VT-x ----- dmix 63 days ago "Privilege Escalation" implies you st...