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Branch Privilege Injection Vulnerability Disclosed For Intel CPUs
It was just yesterday that Training Solo was made public as a new speculative execution CPU vulnerability affecting some Intel and Arm CPUs..
Branch Privilege Injection comes out of research by ETH Zurich Computer Security Group "COMSEC" that has discovered other interesting vulnerabilities in the past too. Branch Privilege Injection affects all Intel CPUs since the 9th Gen Core CPUs (Coffee Lake Refresh) while the Indirect Branch Prediction Barrier vector goes back to 7th Gen Core (Kaby Lake) processors. Between Training Solo and Branch Privilege Injection, interesting times ahead for some fresh CPU benchmarking with up-to-date software stacks.
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