CVE-2020-12933 : Security Advisory and Response

A denial of service vulnerability exists in the D3DKMTEscape handler functionality of AMD ATIKMDAG.SYS, potentially allowing an out-of-bounds read in Windows OS kernel memory.

Understanding CVE-2020-12933

This CVE involves a denial of service vulnerability in the AMD Graphics Driver for Windows.

What is CVE-2020-12933?

The vulnerability is triggered by a specially crafted D3DKMTEscape API request.
It can lead to an out-of-bounds read in the Windows OS kernel memory area.
The issue can be exploited by a non-privileged account.

The Impact of CVE-2020-12933

Attackers could exploit this vulnerability to cause a denial of service on affected systems.
This could potentially lead to system instability or crashes.

Technical Details of CVE-2020-12933

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability exists in the D3DKMTEscape handler functionality of AMD ATIKMDAG.SYS.
It affects versions like 26.20.15029.27017.

Affected Systems and Versions

Product: AMD Graphics Driver for Windows
Version: Fixed in version 20.50 and later

Exploitation Mechanism

Specially crafted D3DKMTEscape API request
Out-of-bounds read in Windows OS kernel memory

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2020-12933.

Immediate Steps to Take

Apply the fix provided in version 20.50 or later of the AMD Graphics Driver for Windows.
Monitor AMD's security advisories for any updates or patches.

Long-Term Security Practices

Regularly update and patch all software and drivers on your system.
Implement the principle of least privilege to limit the impact of potential vulnerabilities.

Patching and Updates

Ensure that your system is always up to date with the latest security patches.