Since the vulnerability concerns the firmware it's up to manufacturers to address the issue by releasing a patch. Only Lenovo has been forthcoming so far and a firmware update can be downloaded from their site: https://support.lenovo.com/nl/en/produc ... /len-17297
The following CPUs are vulnerable to the exploit:
- 6th, 7th, and 8th Generation Intel Core
- Intel Xeon Processor E3-1200 v5 and v6
- Intel Xeon Processor Scalable
- Intel Xeon Processor W
- Intel Atom C3000 Processor
- Apollo Lake Intel Atom Processor E3900 series
- Apollo Lake Intel Pentium
- Celeron N and J series Processors
After extracting the zip file open the subfolder called DiscoveryToolGUI and run the exe file called Intel-SA-00086-GUI.exe (The exe may differ for the Linux version).
I ran it on my own machine and it only takes about 10 seconds to complete. In my particular case the result was negative due most likely to my Haswell CPU which is 5th generation, but the ghacks.net site owner, Martin Brinkman's own system is. There's an image of the scan result on his machine here: https://www.ghacks.net/2017/11/22/find- ... abilities/