CVE-2021-34387 : Vulnerability Insights and Analysis

ARM TrustZone Technology, the foundation of Trusty, has a vulnerability in access permission settings allowing write access to kernel code and data that is usually read-only.

Understanding CVE-2021-34387

This CVE impacts NVIDIA Jetson TX1 devices running Linux versions earlier than r32.5.1.

What is CVE-2021-34387?

The vulnerability lies in the ARM TrustZone Technology used by Trusty, with misconfigured access permissions allowing unauthorized write access to kernel code and data.

The Impact of CVE-2021-34387

This vulnerability poses a medium threat, with a CVSS base score of 6.3. It can lead to high confidentiality and integrity impacts, requiring high privileges and local access.

Technical Details of CVE-2021-34387

The detailed technical information about the CVE.

Vulnerability Description

TrustZone vulnerability permits unauthorized write access to kernel code and data by misconfiguring access permissions.

Affected Systems and Versions

NVIDIA Jetson TX1 devices running Linux versions before r32.5.1 are affected by this vulnerability.

Exploitation Mechanism

Attack complexity is high, requiring local access and user interaction to exploit this vulnerability, impacting confidentiality, integrity, and availability.

Mitigation and Prevention

Explore the best practices to protect your systems from CVE-2021-34387.

Immediate Steps to Take

Update affected systems to version r32.5.1 or later to mitigate the vulnerability. Implement access controls and monitor for suspicious activities.

Long-Term Security Practices

Regularly update and patch systems, restrict user privileges, and conduct security audits to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates from NVIDIA for the latest patches and enhancements.