AshampooŽ Spectre Meltdown CPU Checker
You can download a small program from Ashampoo to check if your CPU is vulnerable to Spectre/Meltdown.
https://www.ashampoo.com/en/usd/lpa/spectre-meltdown-cpu-checker
Note, this is just a check not a patch/fix.
--------------------------------------------------------------
For those of us running Linux there is a check tool too....
So, if you want to check for meltdown and spectre vulnerabilities on your Linux OS.
Download spectre-meltdown-checker.sh from here (23.7kb Archive).
https://github.com/speed47/spectre-meltdown-checker
Once downloaded open it in terminal or as root and run
sudo sh spectre-meltdown-checker.sh
from where you downloaded/placed the file.
This will open a terminal and give you relevant information on any vulnerability.