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It seems as Spectre still hauntsIntelandAMDprocessors after cybersecurity researchers found new working speculative execution attacks.
To improve their performance, modern processors make a run at guess what tasks to do next.
The attacks undermine the Indirect Branch Predictor Barrier (IBPB) on x86 processors, it was explained.
IBP is pivotal in defending against speculative execution attacks.
In fact, both said they already discovered them and are working on a fix.
Intel is tracking it as CVE-2023-38575, and AMD is tracking it as CVE-2022-23824.
ViaBleepingComputer
