CVE-2021-34376 Explained : Impact and Mitigation
CVE-2021-34376 impacts NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX. Learn about the vulnerability, its impact, and mitigation measures.
Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 5 is missing. This flaw could result in denial of service, escalation of privileges, and information disclosure.
Understanding CVE-2021-34376
Trusty, when handling HDCP service TA, is susceptible to a lack of bounds checking which could lead to severe security implications.
What is CVE-2021-34376?
CVE-2021-34376 is a vulnerability in Trusty that could potentially allow attackers to exploit the HDCP service TA due to missing bounds checking in command 5.
The Impact of CVE-2021-34376
The vulnerability could result in denial of service attacks, privilege escalation, and unauthorized access to sensitive information, posing significant risks to affected systems.
Technical Details of CVE-2021-34376
When examining the technical aspects of CVE-2021-34376, it becomes apparent how the vulnerability manifests.
Vulnerability Description
The lack of bounds checking in Trusty's HDCP service TA, specifically in command 5, could be exploited to disrupt services, elevate privileges, and access restricted data.
Affected Systems and Versions
NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX running all Jetson Linux versions prior to r32.5.1 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability can be leveraged by attackers to manipulate memory buffers, potentially leading to denial of service, privilege escalation, and exposure of sensitive information.
Mitigation and Prevention
To address CVE-2021-34376, immediate actions along with long-term security practices are crucial.
Immediate Steps to Take
It is recommended to apply security patches provided by NVIDIA promptly to mitigate the risks associated with this vulnerability. Additionally, restricting access to vulnerable systems is advised.
Long-Term Security Practices
Implementing robust security measures such as regular security audits, network segmentation, and user access controls can enhance the overall security posture and minimize the impact of potential vulnerabilities.
Patching and Updates
Ensure that systems are regularly updated with the latest patches and security fixes to address known vulnerabilities and enhance the security of the infrastructure.