July 1, 2024 at 01:40PM New BTI attack called Indirector targets modern Intel CPUs, specifically Raptor Lake and Alder Lake generations. It exploits flaws in Indirect Branch Predictor and Branch Target Buffer to manipulate speculative execution, enabling data extraction. Researchers at UC San Diego discovered and presented the attack, proposing mitigations like IBPB and BPU … Read more
April 10, 2024 at 01:24PM Researchers have developed the first native Spectre v2 exploit, affecting Linux systems on modern Intel processors. The discovery highlights the ongoing challenge of balancing performance optimization with security. Spectre V2 leverages speculative execution, leaving traces of sensitive data in CPU caches, and introduces security risks. Various entities are responding with … Read more
October 24, 2023 at 05:48PM Researchers from ETH Zurich have developed Cascade, a novel fuzzer designed to find bugs in RISC-V chips. Unlike other fuzzers, Cascade constructs long random programs that manage the control flow during execution, allowing for more thorough testing of the silicon. It was able to find 37 new bugs in six … Read more