CVE-2019-5124 : Exploit Details and Defense Strategies

The AMD ATIDXX64.DLL driver, version 26.20.13001.50005, contains a vulnerability that can lead to a denial of service when a specially crafted pixel shader is used.

Understanding CVE-2019-5124

This CVE involves an out-of-bounds read vulnerability in the AMD ATIDXX64.DLL driver, impacting systems running specific versions.

What is CVE-2019-5124?

An out-of-bounds read vulnerability in the AMD ATIDXX64.DLL driver
Exploitable through a specially crafted pixel shader
Can result in a denial of service

The Impact of CVE-2019-5124

Allows attackers to trigger the vulnerability using a specially crafted shader file
Affects VMware guest systems, potentially impacting the VMware host

Technical Details of CVE-2019-5124

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in the AMD ATIDXX64.DLL driver allows for an out-of-bounds read, leading to a denial of service when a specific pixel shader is utilized.

Affected Systems and Versions

Product: AMD
Version: AMD ATIDXX64.DLL (26.20.13001.50005) running on Radeon RX 550 / 550 Series VMware Workstation 15 (15.1.0 build-13591040) with Windows 10 x64 as guestVM

Exploitation Mechanism

Attackers exploit the vulnerability by providing a specially crafted shader file
Triggered when using a VMware guest, potentially impacting the VMware host

Mitigation and Prevention

Protecting systems from CVE-2019-5124 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by AMD and VMware
Monitor for any unusual shader file activities

Long-Term Security Practices

Regularly update AMD and VMware software to the latest versions
Implement network segmentation to isolate vulnerable systems

Patching and Updates

Stay informed about security updates from AMD and VMware
Apply patches promptly to mitigate the risk of exploitation