From: Billy Brumley:
Date: Fri, 2 Nov 2018 00:12:27 +0200
We recently discovered a new CPU microarchitecture attack vector. The
nature of the leakage is due to execution engine sharing on SMT (e.g.
Hyper-Threading) architectures. More specifically, we detect port contention to construct a timing side channel to exfiltrate information from processes running in parallel on the same physical core. Report is below.[…]
Billy Bob Brumley, Cesar Pereida Garcia, Sohaib ul Hassan, Nicola Tuveri (Tampere University of Technology, Finland) Alejandro Cabrera Aldaya (Universidad Tecnologica de la Habana CUJAE, Cuba)
Attached exploit code (password “infected”) should work out of the box for Skylake and Kaby Lake. Said code, soon to be followed by a preprint with all the nitty-gritty details, is also here: