This is a Proof-of-Concept code that demonstrates the exploitation of the CVE-2017-5721 vulnerability. This PoC causes a system to be completely stuck because of Machine Check Exception occurred.
All you need is CHIPSEC Framework installed. And don't forget to put GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off" in /etc/default/grub if you have Intel device.
Usage example:
sudo python poc.py