How to check Spectre and Meltdown on Ubuntu/Debian ?

Using Terminal
   To check Spectre and Meltdown vulnerability by Terminal, enter that command. You will see information about security vulnerabilities on the CPU from Linux kernel developers:
      grep . /sys/devices/system/cpu/vulnerabilities/*

Using Spectre & Meltdown checker for Linux
   If you would like to know more about the Specter and Meltdown vulnerabilities, you can use the "Specter and Meltdown checker for Linux"

   First, enter the that command to download "Specter and Meltdown checker for Linux":
      git clone https://github.com/speed47/spectre-meltdown-checker
      cd spectre-meltdown-checker

   Next, to check and see details about the Specter and Meltdown vulnerabilities on your CPU, enter this command:
      sudo ./spectre-meltdown-checker.sh

   You will find detailed information about security vulnerabilities Meltdown, Specter Specter v1 and v2 on your CPU. And whether your computer is vulnerable to attacks via Specter and Meltdown vulnerabilities

How to patch vulnerabilities Specter and Meltdown ?
   Developers will release patches through the packages, so update your Linux distribution regularly

Read more: Spectre & Meltdown checker for Linux: http://bit.ly/2Jjumse