CVE-2021-34388 : Security Advisory and Response
Understand the impact and technical details of CVE-2021-34388 affecting NVIDIA Jetson series. Learn how to mitigate this vulnerability and safeguard your systems.
NVIDIA Jetson TX1, TX2 series, TX2 NX, AGX Xavier series, Xavier NX, Nano, and Nano 2GB devices are affected by a vulnerability in the bootloader component. An attacker could exploit this vulnerability to execute code or launch a denial of service attack.
Understanding CVE-2021-34388
This section provides insights into the nature and impact of the CVE-2021-34388 vulnerability.
What is CVE-2021-34388?
The vulnerability in NVIDIA TegraBoot found in the bootloader component could result in a heap overflow, potentially enabling an attacker to take control of RAM beyond the heap block. This takeover could lead to a denial of service condition or unauthorized code execution.
The Impact of CVE-2021-34388
With a CVSS v3.1 base score of 6.3, this vulnerability poses a medium-severity threat. It has a high availability impact and could allow attackers to compromise the affected devices' integrity, impacting system performance.
Technical Details of CVE-2021-34388
Explore the specifics of the CVE-2021-34388 vulnerability in this section.
Vulnerability Description
The vulnerability arises from a heap overflow in NVIDIA TegraBoot, handing attackers the potential to manipulate RAM beyond an allocated heap block, opening doors for malicious activities.
Affected Systems and Versions
All Jetson Linux versions prior to r32.5.1 are susceptible to this vulnerability, leaving a wide range of devices exposed to exploitation.
Exploitation Mechanism
The vulnerability allows attackers to gain unauthorized access to system memory and execute malicious code, leading to a denial of service situation.
Mitigation and Prevention
Discover the protective measures against CVE-2021-34388 in this section.
Immediate Steps to Take
Users should update their systems to version r32.5.1 or later to patch the vulnerability and prevent potential exploits. Additionally, monitor system behavior for any signs of unauthorized access.
Long-Term Security Practices
Implement regular security updates and patches to keep systems resilient against emerging threats. Follow best security practices and conduct routine security audits to maintain system integrity.
Patching and Updates
Stay informed about security advisories from NVIDIA and promptly install recommended patches to fortify system defenses against known vulnerabilities.