Intel processors are vulnerable to a new attack that breaches the security guarantees of Intel Software Guard eXtensions (SGX) enclaves. SGAxe is an evolution of the CacheOut attack (also known as L1D Eviction Sampling) previously disclosed by researchers at the University of Michigan, University of Adelaide, and Data61 in January 2020. The attack can be used against machines using Intel s 9th generation Coffee Lake Refresh processors, fully updated with all the SGX countermeasures Intel published so far.
Source: https://www.bleepingcomputer.com/news/security/new-sgaxe-attack-steals-protected-data-from-intel-sgx-enclaves/