CVE-2021-34390 : What You Need to Know

Trusty contains a vulnerability in the NVIDIA TLK kernel function that allows exploitation of an integer overflow through a specific SMC call, potentially leading to denial of service.

Understanding CVE-2021-34390

This CVE affects NVIDIA Jetson TX1 devices with certain Linux versions prior to r32.5.1.

What is CVE-2021-34390?

Trusty has a flaw in the NVIDIA TLK kernel function that lacks checks, enabling an integer overflow through a specific SMC call by the user, posing a risk of denial of service.

The Impact of CVE-2021-34390

With a CVSS base score of 5.3, this medium-severity vulnerability requires low privileges, impacts availability, and user interaction is needed to trigger the exploit.

Technical Details of CVE-2021-34390

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises due to a lack of checks in the NVIDIA TLK kernel function, allowing malicious actors to trigger an integer overflow through a specific SMC call.

Affected Systems and Versions

NVIDIA Jetson TX1 devices running Linux versions prior to r32.5.1 are vulnerable to this exploit.

Exploitation Mechanism

The exploitation of an integer overflow through the specific SMC call can lead to a denial of service on affected systems.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2021-34390.

Immediate Steps to Take

Users are advised to apply necessary patches or updates provided by NVIDIA to address this vulnerability.

Long-Term Security Practices

In the long run, maintaining up-to-date software and following security best practices is crucial to safeguard systems against such vulnerabilities.

Patching and Updates

Regularly checking for updates and applying security patches promptly can help prevent exploitation of known vulnerabilities.