You Shall Not Pass into Ring-0! a User Privacy-Friendly Anti-Cheat Architecture for Personal Computers

Kernel-level anti-cheats are effective against malicious player behavior in competitive video games, but raise significant user privacy concerns regarding installing unverifiable components at privileged modes i.e., ring-0 in x86. While existing research has focused on improving the effectiveness...

Xen Denial of Service Vulnerability (CNVD-2020-07293)

Xen is an open source virtual machine monitor product. A denial of service vulnerability exists in Xen 4.12. and earlier versions. The vulnerability stems from the VMX VMEntry check not handling certain situations correctly. An attacker could exploit this vulnerability to cause a denial of servic...

Xen elevation of privilege vulnerability (CNVD-2016-11706)

Xen is an open source virtual machine monitor product developed at the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. An elevation of privilege...