"Zenbleed" bug affects all Zen 2-based Ryzen, Threadripper, and EPYC CPUs.
The bug allows attackers to swipe data from a CPU’s registers. […] the exploit doesn’t require physical hardware access and can be triggered by loading JavaScript on a malicious website.
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I mean, this was disclosed to AMD a few months back and there actually is a patch available currently for Epyc CPUs.
It’d be nice if they waited until all the patches were out, but I’d rather this than a full zero-day exploit of this scale in the wild.
It’s very weird it takes them so long to fix this for consumers tbh. You’d think they could just take the snippet from Epyc and patch it into AGESA, since it’s exactly the same architecture. December is hardly acceptable for a critical vulnerability like this.
This is a great opportunity to remind people the NoScript, HTTPS-only modes and filter lists for malicious websites (to use in your adblock of choice) exist. Use them.
This kind of shit is exactly why I use uMatrix as well as uBlock Origin. It allows me to monitor and control 3rd party scripts and allow only what’s needed for a website. If a malicious 3rd party script does happen to get injected into things; I usually notice…especially if it actually breaks shit on the website by not loading it.