It feels like not-a-coincidence that OpenBSD added AMD microcode loading in the last 3 days.
Zenbleed
11–20 of 378 posts
Re: Zenbleed
#12> AMD have released an microcode update for affected processors. Your BIOS or Operating System vendor may already have an update available that includes it. Yes, I love flashing BIOS... edit nvm, Microcode can get updated via system updates.
To be fair, flashing the bios isn't nearly as bad on most modern systems. Put the file on a USB drive, plug it in, restart and go into the bios, look for the flashing utility, select the file, done. As long as the machine is on a UPS in case of disaster, everything's accounted for.
Sometimes there's even a backup BIOS die available, so yeah, bricking is now much harder than in the past.
Re: Zenbleed
#13The site is getting hugged to death. https://web.archive.org/web/20230724143835/https://lock.cmpx...
Re: Zenbleed
#14[deleted]
Re: Zenbleed
#15[flagged]
Re: Zenbleed
#16The site is getting hugged to death. https://web.archive.org/web/20230724143835/https://lock.cmpx...
And now we've hugged the archive to death. Nice job!
Re: Zenbleed
#17[deleted]
Re: Zenbleed
#18The site is getting hugged to death. https://web.archive.org/web/20230724143835/https://lock.cmpx...
The original still loads (eventually) for me. YMMV.
Re: Zenbleed
#19[flagged]
Re: Zenbleed
#20Relevant snippet: This technique is CVE-2023-20593 and it works on all Zen 2 class processors, which includes at least the following products: AMD Ryzen 3000 Series Processors AMD Ryzen PRO 3000 Series Processors AMD Ryzen Threadripper 3000 Series Processors AMD Ryzen 4000 Series Processors with Radeon Graphics AMD Ryzen PRO 4000 Series Processors AMD Ryzen 5000 Series Processors with Radeon Graphics AMD Ryzen 7020 S…
FYI, Ryzen 3000 APUs aren't Zen 2.