CVE-2021-1084 : Exploit Details and Defense Strategies

NVIDIA vGPU driver has a vulnerability in the guest kernel mode driver and Virtual GPU Manager. This can result in information disclosure, data tampering, or denial of service.

Understanding CVE-2021-1084

This CVE affects NVIDIA Virtual GPU Software versions 11.x (prior to 11.4) and 12.x (prior to 12.2).

What is CVE-2021-1084?

The vulnerability in the NVIDIA vGPU driver allows attackers to exploit input length validation issues, potentially leading to various security risks.

The Impact of CVE-2021-1084

With a CVSS base score of 7.8, this CVE poses a high risk, with confidentiality, integrity, and availability all rated as high impact.

Technical Details of CVE-2021-1084

The following technical details shed light on the vulnerability:

Vulnerability Description

The vulnerability arises due to the lack of validation of input length, making it possible for attackers to carry out information disclosure, data tampering, or denial of service attacks.

Affected Systems and Versions

NVIDIA Virtual GPU Software versions 11.x (prior to 11.4) and 12.x (prior to 12.2) are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the input length validation issue to manipulate data, disrupt services, or gain unauthorized access.

Mitigation and Prevention

To address CVE-2021-1084, consider the following steps:

Immediate Steps to Take

Update to NVIDIA vGPU Software versions 11.4 or 12.2, which include fixes for the vulnerability.
Monitor system logs and network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update all software and drivers to the latest versions.
Implement access controls and restrictions to minimize potential attack surfaces.

Patching and Updates

Stay informed about security updates from NVIDIA and apply patches promptly to mitigate potential risks.