Memory DisOrder: Memory Re-Orderings As a Timerless Side-Channel

To improve efficiency, nearly all parallel processing units CPUs and GPUs implement relaxed memory models in which memory operations may be re-ordered, i.e., executed out-of-order. Prior testing work in this area found that memory re-orderings are observed more frequently when other cores are...

Uncovering a ChromeOS remote memory corruption vulnerability

Microsoft discovered a memory corruption vulnerability in a ChromeOS component that can be triggered remotely, allowing attackers to perform either a denial-of-service DoS or, in extreme cases, remote code execution RCE. Following our D-Bus blog post that focused on Linux, we searched for similar...