CVE-2021-34399 : Exploit Details and Defense Strategies

NVIDIA GPU and Tegra hardware are impacted by a vulnerability in the internal microcontroller that could permit a user with elevated privileges to access information from unscrubbed registers, potentially resulting in information disclosure.

Understanding CVE-2021-34399

This section provides insights into the nature and impact of the CVE-2021-34399 vulnerability.

What is CVE-2021-34399?

CVE-2021-34399 is a vulnerability found in NVIDIA GPU and Tegra hardware due to a flaw in the internal microcontroller, allowing unauthorized access to sensitive data by users with elevated privileges.

The Impact of CVE-2021-34399

The vulnerability could lead to information disclosure when exploited, posing a risk to the confidentiality of data stored within the affected NVIDIA hardware.

Technical Details of CVE-2021-34399

This section outlines technical specifics related to the CVE-2021-34399 vulnerability.

Vulnerability Description

The vulnerability in the internal microcontroller of NVIDIA GPU and Tegra hardware enables users with high privileges to gain unauthorized access to data residing in unscrubbed registers.

Affected Systems and Versions

The impacted versions include Turing, Volta, Pascal, Maxwell, Tegra X1, Tegra X1+, Tegra TX2, and Xavier.

Exploitation Mechanism

The vulnerability can be exploited locally with a high attack complexity, requiring high privileges, and with no user interaction, affecting the confidentiality of data.

Mitigation and Prevention

This section focuses on measures to mitigate and prevent the exploitation of CVE-2021-34399.

Immediate Steps to Take

Users are advised to apply security patches provided by NVIDIA promptly to address the vulnerability and prevent potential unauthorized access.

Long-Term Security Practices

Implementing strong access controls, regular security updates, and monitoring for any suspicious activities can enhance the long-term security posture of the affected systems.

Patching and Updates

Regularly check for firmware updates and security advisories from NVIDIA to ensure that the systems are protected from known vulnerabilities.