To patch the Meltdown CPU vulnerability (CVE-2017-5754) on a Linux system, you need to install the latest security updates and patches from your Linux distribution vendor. The exact steps to do this will depend on the distribution and version you’re using, but some common methods include using the package manager (e.g. yum, apt-get, dnf, zypper, etc.) or manually downloading and installing the patches.
Here are the steps to update your system using the package manager on common distributions:
- Ubuntu / Debian:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
- CentOS / RHEL:
sudo yum update
- Fedora:
sudo dnf update
- SuSE:
sudo zypper update
After updating the system, you should reboot the system to make sure the patches are loaded and the Meltdown vulnerability is fixed. It’s also a good idea to check the release notes and documentation of your Linux distribution to confirm that the patches include fixes for the Meltdown vulnerability.