It was back in January that the news of the Spectre and Meltdown CPU vulnerabilities were first reported and since then many companies have been working to protect against potential attacks. Most of these solutions have been in software, which can be enough and can be developed quickly, but since the original release, hardware-level fixes have been discussed for finally blocking potential attacks.
Intel, which was the only company with products susceptible to Meltdown and both variants of Spectre, recently stated it has released new microcode for all of its products from the past five years that were vulnerable to these side-channel attacks. Naturally this means you must install these updates to protect your system. To provide even more protection against the second variant of Spectre and against Meltdown, Intel has also developed hardware design changes and these will be present in its next generation Intel Xeon Scalable processors, which have the code name Cascade Lake, and in 8thsignificant performance penalties for some workloads.
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