How to check for Spectre and Meltdown vulnerabilities on Linux
Step 1: Download "spectre-meltdown-checker.sh" to your Downloads folder.
https://github.com/speed47/spectre-meltdown-checker
Direct Link: https://raw.githubusercontent.com/speed47/spectre-meltdown-checker/master/spectre-meltdown-checker.sh
Step 2: Right Click anywhere in Downloads folder and open Terminal.
Step 3: sudo sh spectre-meltdown-checker.sh
Example script output: