Kapone32If Intel introduces a HEDT platform for the consumers AMD must respond. May 20th 2023 AMD's Ryzen 7 7800X3D Selling Nearly Twice as Fast as 5800X3D in Some Regions (88)Īdd your own comment 13 Comments on AMD Ryzen Threadripper 7000WX "Storm Peak" Only by Q3-2023 #1 Funnyelevator.May 15th 2023 AMD Ryzen 8000 "Granite Ridge" Zen 5 Processor to Max Out at 16 Cores (110).Oct 17th 2022 AMD Cuts Down Ryzen 7000 "Zen 4" Production As Demand Drops Like a Rock (242).Feb 24th 2023 AMD's Reviewers Guide for the Ryzen 9 7950X3D Leaks (133).Feb 1st 2023 AMD Ryzen 7000X3D Series Prices Revealed, Available Feb 28 (174).Jan 4th 2023 AMD Ryzen 7000X3D Announced, Claims Total Dominance over Intel "Raptor Lake," Upcoming i9-13900KS Deterred (177).Apr 24th 2023 AMD Ryzen 7000X3D Processors Prone to Physical Damage with Voltage-assisted Overclocking, Motherboard Vendors Rush BIOS Updates with Voltage Limiters (258).Jun 14th 2023 AMD Zen 4c Not an E-core, 35% Smaller than Zen 4, but with Identical IPC (135).Dec 2nd 2022 AMD Readies 16-core, 12-core, and 8-core Ryzen 7000X3D "Zen 4" Processors (153).Jan 5th 2023 AMD Confirms Ryzen 9 7950X3D and 7900X3D Feature 3DV Cache on Only One of the Two Chiplets (164).AMD plans to release a firmware fix by December, though your motherboard or PC manufacturer will be responsible for distributing the update. If you're using Ryzen desktop processors, all Ryzen 3000-series and Ryzen 4000G-series chips (but not Ryzen 3000G, which uses an older Zen version) are vulnerable to Zenbleed. But AMD's habit of mixing-and-matching processor architectures in recent CPU generations means that there are some Zen 2 chips sprinkled across the Ryzen 4000, 5000, and 7000 lineups as well, affecting some new systems as well as older ones. The Zen 2 architecture first came to consumer systems around four years ago in the form of the AMD Ryzen 3000 series the Rywas especially popular among PC builders. AdvertisementĪMD has already issued a firmware update mitigating the issue for servers running the EPYC 7002 chips-arguably the most important of the patches since a busy server running multiple virtual machines is a more lucrative target for hackers than individual consumer PCs.ĪMD says that "any performance impact will vary depending on workload and system configuration" but hasn't provided additional details. Since the vulnerability is in the hardware, a firmware update from AMD is the best way to fully fix it Ormandy says it is also fixable via a software update, but it "may have some performance cost." The bug affects all processors based on AMD's Zen 2 architecture, including several Ryzen desktop and laptop processors, EPYC 7002-series chips for servers, and Threadripper 3000- and 3000 Pro WX-series CPUs for workstations. Cloudflare also says there is "no evidence of the bug being exploited" on its servers. "AMD is not aware of any known exploit of the described vulnerability outside the research environment," the company told Tom's Hardware. The good news is that, at least for now, there don't seem to be any cases of this bug being exploited in the wild yet, though this could change quickly now that the vulnerability has been disclosed, and the bug requires precise timing to exploit. The bad news is that the exploit doesn't require physical hardware access and can be triggered by loading JavaScript on a malicious website (according to networking company Cloudflare). Modern processors attempt to speed up operations by guessing what they'll be asked to do next, called "speculative execution." But sometimes the CPU guesses wrong Zen 2 processors don't properly recover from certain kinds of mispredictions, which is the bug that Zenbleed exploits to do its thing. The bug allows attackers to swipe data from a CPU's registers. Executed properly, the so-called "Zenbleed" vulnerability (CVE-2023-20593) could give attackers access to encryption keys and root and user passwords, along with other sensitive data from any system using a CPU based on AMD's Zen 2 architecture. A recently disclosed bug in many of AMD's newer consumer, workstation, and server processors can cause the chips to leak data at a rate of up to 30 kilobytes per core per second, writes Tavis Ormandy, a member of Google's Project Zero security team.
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