Papusan Posted July 15, 2022 Share Posted July 15, 2022 AMD And Intel CPUs Rocked By New Speculative Execution Attack With A Huge Performance Hit Do you remember a few years ago when everyone panicked over a couple of security flaws known as Meltdown and Spectre? These were a new type of security hole altogether, known as speculative execution flaws because they exploit the so-named capability of modern processors. That was back in 2018, and since then, every tech company under the sun has issued patches, firmware updates, and other guidance to mitigate the danger of these attacks. So that's all over and dealt with, right? Well... not exactly. As it turns out, one of the major mitigations deployed against Spectre, known as "retpoline", isn't actually as helpful as we thought. A new flaw, known as "retbleed", has been discovered by researchers at ETH Zurich. Retbleed evades earlier protections against a specific form of the Spectre vulnerability, including machines using the retpoline mitigation.. Both AMD and Intel say that they're not aware of anyone making use of these vulnerabilities in the wild, but patches aren't available yet. When they do become available, they may come with a performance hit of as much as 28%. Hopefully some clever coders will come up with a way to mitigate that performance loss. Microsoft try push you over on new hardware so you can enjoy their latest and most secure OS. Same do the HW manufacturers. They know they later have to patch flaws they have added to try optimize for better performance. Give with one hand and then take it back with the other hands. Or just hope you buy their newest and safer products that will suffer same mess after a couple of years. Why not just stop optimize for performance when you know you have to take it back later? "The Killer" ASUS ROG Z690 Apex | 13900K | 4090 HOF | 32GB DDR5 | Be Quiet! Dark Power Pro 12 - 1500 Watt | Second PSU - Cooler Master V750 SFX Gold 750W (For total of 2250W) | Corsair Obsidian 1000D | Custom Loop | Asus ROG Strix XG27AQ 27" Monitors Papusan @ HWBOT | Team PremaMod @ HWBOT | Papusan @ YouTube Channel Link to comment Share on other sites More sharing options...
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