Researchers have discovered a new side-channel vulnerability in Apple’s M-series of processors that they claim could be used to extract secret keys from Mac devices when they’re performing cryptographic operations.
Academic researchers from the University of Illinois Urbana-Champaign, University of Texas at Austin, Georgia Institute of Technology, University of California, University of Washington, and Carnegie Mellon University, explained in a research paper that the vulnerability, dubbed GoFetch, was found in the chips’ data memory-dependent prefetcher (DPM), a optimization mechanism that predicts the memory addresses of data that active code could access in the near future.
