CVE-2021-23219 : Exploit Details and Defense Strategies
Learn about CVE-2021-23219 impacting NVIDIA GPU and Tegra hardware, allowing unauthorized access to protected information, potentially leading to data disclosure. Find mitigation steps here.
NVIDIA GPU and Tegra hardware contain a vulnerability in the internal microcontroller that could be exploited by a user with elevated privileges to access protected information. This vulnerability could potentially lead to information disclosure.
Understanding CVE-2021-23219
This section dives into the details of the CVE-2021-23219 vulnerability in NVIDIA GPU and Tegra hardware.
What is CVE-2021-23219?
NVIDIA GPU and Tegra hardware are impacted by a vulnerability in the internal microcontroller, allowing a user with elevated privileges to exploit vulnerable microcode and gain access to protected information. This flaw could result in the disclosure of sensitive data.
The Impact of CVE-2021-23219
The impact of CVE-2021-23219 is considered medium with a base severity score of 4.1 (CVSS v3.1). The attack complexity is high, requiring local access and high privileges, while the confidentiality impact is rated high as well.
Technical Details of CVE-2021-23219
In this section, we explore the technical aspects of the CVE-2021-23219 vulnerability.
Vulnerability Description
The vulnerability lies in the internal microcontroller of NVIDIA GPU and Tegra hardware, enabling unauthorized access to protected information by exploiting and loading vulnerable microcode.
Affected Systems and Versions
The affected products include NVIDIA GPU and Tegra hardware, specifically Maxwell (except GM206), Tegra X1, and Tegra X1+.
Exploitation Mechanism
A user with elevated privileges can exploit the vulnerability in the internal microcontroller to access protected information, potentially leading to information disclosure.
Mitigation and Prevention
Here are the recommended steps to mitigate and prevent the CVE-2021-23219 vulnerability in NVIDIA GPU and Tegra hardware.
Immediate Steps to Take
Users are advised to apply patches and security updates provided by NVIDIA promptly to address the vulnerability.
Long-Term Security Practices
Implementing strict access controls, regular security audits, and monitoring mechanisms can help prevent unauthorized access and protect sensitive information.
Patching and Updates
Stay informed about security advisories from NVIDIA and apply relevant patches and updates to ensure the security of NVIDIA GPU and Tegra hardware.