CVE-2021-34377 : Vulnerability Insights and Analysis

Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 9 is missing. This could lead to escalation of privileges, information disclosure, and denial of service.

Understanding CVE-2021-34377

Trusty has a vulnerability in the HDCP service TA due to missing bounds checking in command 9. The impact includes potential privilege escalation and denial of service.

What is CVE-2021-34377?

Trusty has an HDCP service TA vulnerability with missing bounds checking. Attackers can exploit this to escalate privileges, disclose information, and cause denial of service.

The Impact of CVE-2021-34377

The vulnerability in Trusty's HDCP service TA could result in severe consequences, including escalation of privileges, information exposure, and denial of service attacks.

Technical Details of CVE-2021-34377

The technical details include vulnerability description, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability arises due to missing bounds checking in Trusty's HDCP service TA, potentially enabling attackers to achieve privilege escalation and conduct denial of service attacks.

Affected Systems and Versions

NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX are affected. All Jetson Linux versions prior to r32.5.1 are vulnerable.

Exploitation Mechanism

Attackers can exploit the lack of bounds checking in Trusty's HDCP service TA (command 9) to gain escalated privileges, leading to information disclosure and denial of service.

Mitigation and Prevention

To address CVE-2021-34377, immediate action steps should be taken alongside long-term security practices and applying necessary patches and updates.

Immediate Steps to Take

Immediately update affected systems to the latest version (r32.5.1 or newer), restrict access to vulnerable services, and monitor for any suspicious activities.

Long-Term Security Practices

Implement security best practices such as regular system updates, security training for employees, and maintaining a proactive security posture.

Patching and Updates

Apply the provided patches by NVIDIA to fix the vulnerability in Trusty's HDCP service TA.