Hacky Racers: Exploiting Instruction-Level Parallelism to Generate Stealthy Fine-Grained Timers
Haocheng Xiao, Sam Ainsworth · 2023
Side-channel attacks pose serious threats to many security models, especially sandbox-based browsers. While transient-execution side channels in out-of-order processors have previously been blamed for vulnerabilities such as Spectre and Meltdown, we show that in fact, the capability of out-of-order execution itself to cause mayhem is far more general.