Intel said today it is investigating an issue with Broadwell and Haswell CPUs after customers reported higher system reboot rates when they installed firmware updates for fixing the Spectre flaw.
AMD officially admitted today that its processors are not vulnerable to the Meltdown bug, but are affected by both variants of the Spectre flaw.
Microsoft has halted the rollout of Windows OS security updates for the Meltdown and Spectre patches for all customer devices that use an AMD CPU.
AMD has fixed, but not yet released BIOS/UEFI/firmware updates for the general public for a security flaw affecting the AMD Secure Processor.
OS makers and cloud service providers are preparing patches for a security bug affecting Intel processors, according to several sources with knowledge of the upcoming fixes.
The security protocol that governs how virtual machines share data on a host system powered by AMD Zen processors has been found to be insecure, at least in theory, by Felicitas Hetzelt and Robert Buhren, two scientists at the Security in Telecommunications Department at the Technical University of Berlin, Germany.