CVE-2022-28195 : What You Need to Know

NVIDIA Jetson Linux Driver Package contains a vulnerability that allows a highly privileged local attacker to perform various malicious activities, impacting confidentiality, integrity, and potentially leading to code execution.

Understanding CVE-2022-28195

This CVE identifies a security flaw in the Cboot ext4_read_file function within the NVIDIA Jetson Linux Driver Package.

What is CVE-2022-28195?

The vulnerability arises due to insufficient validation of untrusted data, enabling a local attacker to trigger an integer overflow. This could result in severe consequences such as code execution, privilege escalation, limited denial of service, and compromise of confidentiality and integrity.

The Impact of CVE-2022-28195

With a CVSS base score of 5.7 (Medium severity), this vulnerability requires high privileges to exploit locally. It could lead to code execution, privilege escalation, limited denial of service, and affect confidentiality and integrity with a low impact on availability.

Technical Details of CVE-2022-28195

This section provides more insight into the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability in the Cboot ext4_read_file function allows a highly privileged local attacker to exploit an integer overflow, potentially leading to severe consequences.

Affected Systems and Versions

The vulnerability affects NVIDIA's Jetson AGX Xavier series and Jetson Xavier NX devices running all 32.x versions prior to 32.7.2.

Exploitation Mechanism

To exploit this vulnerability, an attacker needs high privileges on the local system to trigger the integer overflow and potentially execute malicious code.

Mitigation and Prevention

Understanding the mitigation strategies and preventive measures can help mitigate the risks associated with CVE-2022-28195.

Immediate Steps to Take

Users are advised to update their NVIDIA Jetson Linux Driver Package to version 32.7.2 or later to eliminate this vulnerability.
Implement strict privilege management to reduce the impact of potential attacks.

Long-Term Security Practices

Regularly monitor for security updates and apply patches promptly to ensure system security.
Conduct security audits and assessments to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay vigilant for updates or patches released by NVIDIA to address security vulnerabilities promptly.
Establish a robust patch management process to deploy updates efficiently and effectively.