CVE-2021-34385 : What You Need to Know
Learn about CVE-2021-34385, a vulnerability in NVIDIA TLK kernel affecting Jetson TX1 devices. Get insights into impact, technical details, and mitigation steps.
This CVE pertains to a vulnerability found in the NVIDIA TLK kernel in the Trusty TLK, affecting NVIDIA Jetson TX1 devices running on all Jetson Linux versions prior to r32.5.1. The vulnerability involves an integer overflow leading to a potential heap overflow.
Understanding CVE-2021-34385
This section will delve into the details of the CVE-2021-34385 vulnerability.
What is CVE-2021-34385?
The CVE-2021-34385 vulnerability exists in the NVIDIA TLK kernel in Trusty TLK, where an integer overflow in the calculation of a length could result in a heap overflow. This vulnerability poses risks of information disclosure, escalation of privileges, and denial of service.
The Impact of CVE-2021-34385
With a CVSS base score of 6.3/10, this vulnerability has a medium severity level. It has a high impact on confidentiality, integrity, and availability of affected systems. The attack complexity is high, requiring local access and elevated privileges, with user interaction being required.
Technical Details of CVE-2021-34385
This section will provide technical insights into the CVE-2021-34385 vulnerability.
Vulnerability Description
The vulnerability is due to an integer overflow in the length calculation, resulting in a heap overflow. This flaw could be exploited by an attacker to gain unauthorized access or disrupt services.
Affected Systems and Versions
NVIDIA Jetson TX1 devices running on all Jetson Linux versions before r32.5.1 are affected by this vulnerability.
Exploitation Mechanism
The exploitation of this vulnerability may lead to unauthorized disclosure of sensitive information, unauthorized escalation of privileges, or denial of service attacks.
Mitigation and Prevention
This section covers the necessary steps to mitigate and prevent the exploitation of CVE-2021-34385.
Immediate Steps to Take
Users are advised to update their NVIDIA Jetson TX1 devices to version r32.5.1 or later to eliminate the vulnerability and enhance system security.
Long-Term Security Practices
To bolster long-term security, best practices include regularly updating systems, implementing strong access controls, and monitoring for any unusual activities.
Patching and Updates
Stay informed about security updates from NVIDIA and promptly apply patches to ensure that systems are protected against known vulnerabilities.