Get the Whitepaper called Exploitation of Windows CVE-2019-0708 (BlueKeep): Three Ways to Write Data into the Kernel with RDP PDU.
You can download it from the following link: https://packetstormsecurity.com/files/download/154275/exploitation-analysis-of-bluekeep.pdf
Source: https://packetstormsecurity.com/files/154275/Exploitation-Of-Windows-CVE-2019-0708-BlueKeep.html