CVE-2019-5684
📋 TL;DR
This vulnerability in NVIDIA Windows GPU Display Drivers allows specially crafted DirectX shaders to cause out-of-bounds memory access in texture arrays. Attackers could exploit this to cause denial of service or potentially execute arbitrary code. All Windows systems with NVIDIA GPU drivers are affected.
💻 Affected Systems
- NVIDIA Windows GPU Display Driver
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with kernel-level code execution leading to complete system control
Likely Case
System crashes, blue screens, or application instability leading to denial of service
If Mitigated
Limited to application crashes if proper sandboxing and driver isolation are in place
🎯 Exploit Status
Exploitation requires user to run malicious DirectX shader content; proof-of-concept details are publicly available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Varies by GPU model - check NVIDIA security bulletin for specific version
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/4841
Restart Required: Yes
Instructions:
1. Visit NVIDIA driver download page 2. Select your GPU model and Windows version 3. Download and install latest driver 4. Restart system
🔧 Temporary Workarounds
Disable DirectX shader execution
windowsPrevent execution of potentially malicious DirectX shaders
Application sandboxing
windowsRun graphics applications in isolated environments
🧯 If You Can't Patch
- Restrict user access to untrusted applications and content
- Implement application allowlisting to prevent execution of unknown programs
🔍 How to Verify
Check if Vulnerable:
Check NVIDIA driver version in Device Manager > Display adapters > Properties > Driver tabCheck Version:
nvidia-smi (if installed) or check in Device ManagerVerify Fix Applied:
Verify driver version matches or exceeds patched version from NVIDIA advisory📡 Detection & Monitoring
Log Indicators:
- System crashes, blue screen events, driver failure logs in Windows Event Viewer
Network Indicators:
- Unusual network traffic from graphics applications
SIEM Query:
EventID=1001 OR EventID=41 OR Source='nvlddmkm' AND (Level=2 OR Level=1)🔗 References
- http://www.vmware.com/security/advisories/VMSA-2019-0012.html
- https://nvidia.custhelp.com/app/answers/detail/a_id/4841
- https://support.lenovo.com/us/en/product_security/LEN-28096
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0779
- http://www.vmware.com/security/advisories/VMSA-2019-0012.html
- https://nvidia.custhelp.com/app/answers/detail/a_id/4841
- https://support.lenovo.com/us/en/product_security/LEN-28096
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0779
