Abstract:TSX Asynchronous Abort (TAA) vulnerability is a class of Side-Channel Attack (SCA) that allows an application to leak data from internal CPU buffers through asynchronous Transactional Synchronization Extension (TSX) aborts that are exploited by the recent Microarchitectural Data Sampling (MDS) attacks. Cross-core TAA attacks can be prevented through microcode updates where CPU buffers are flushed during Operating System (OS) context switching, but there is no solution to our knowledge that exists for hyper-thr… Show more
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