![]() ![]() ![]() Why wouldn’t you want to make that beautiful mug of yours even more flawless? The NARS All Day Luminous Weightless Foundation and Dual-Intensity Blush launches have gripped the attention of beauty lovers worldwide, and with good reason. If that is accurate, then such mitigations should not be rolled out for everyone.The latest NARS releases have been all about the face. OS, driver, etc., then such bugs become very dangerous. And this is one of the reasons why I have said for >5 years that cloud computing is stupid, as it allows a single bug to potentially bypass all layers of security.īut I'm not saying Intel (and potentially others) shouldn't fix all such bugs in future designs, they certainly should, because if there is future bug in a different layer, e.g. You should always expect that a single layer can be compromised at some point. This is the exact reason why good security is implemented in layers. Meltdown, Spectre and others, they have some potential in hypervisors (albeit often little effective), but elsewhere, like single computers and normal servers, it's not a real world problem as you said. This has been the case for most major bugs found in recent years, incl. Multiple admins connected to a server isn't a concern, as admins can do everything anyways.īut there is one major use case where it is cloud providers. Executing a Downfall attack might seem complex, but the final choice between implementing the mitigation or retaining performance will likely vary depending on individual needs and risk assessments.Ĭlick to expand.If that is accurate, then such mitigations should not be rolled out for everyone. Though the microcode update is not mandatory and Intel provides an opt-out mechanism, users are left with a challenging decision between security and performance. The ramifications of Downfall are not restricted to specialized tasks like AI or HPC but may extend to more common applications such as video encoding. While these reductions were less than Intel's forecasted 50% overhead, they remain significant, especially in High-Performance Computing (HPC) workloads. For instance, two Xeon Platinum 8380 processors were around 6% slower in certain tests, while the Core i7-1165G7 faced performance degradation ranging from 11% to 39% in specific benchmarks. ![]() Phoronix tested the Downfall mitigations and reported varying performance decreases on different processors. However, there's concern over the performance impact of the fix, potentially affecting AVX2 and AVX-512 workloads involving the Gather instruction by up to 50%. Intel has responded by releasing updated software-level microcode to fix the flaw. The entire list of affected CPUs is here. The flaw affects Intel mainstream and server processors ranging from the Skylake to Rocket Lake microarchitecture. It inadvertently exposes internal hardware registers, allowing malicious software access to data held by other programs. The vulnerability is linked to Intel's memory optimization feature, exploiting the Gather instruction, a function that accelerates data fetching from scattered memory locations. Intel has recently revealed a security vulnerability named Downfall (CVE-2022-40982) that impacts multiple generations of Intel processors. ![]()
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