CVE-2021-1114 : Exploit Details and Defense Strategies

NVIDIA Linux kernel distributions contain a vulnerability in the kernel crypto node that may result in a complete denial of service. This CVE affects NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX devices running all Jetson Linux versions prior to r32.6.1.

Understanding CVE-2021-1114

This section will explain the details, impact, and mitigation strategies related to CVE-2021-1114.

What is CVE-2021-1114?

CVE-2021-1114 is a vulnerability present in NVIDIA Linux kernel distributions where a use-after-free flaw in the kernel crypto node can lead to a total denial of service.

The Impact of CVE-2021-1114

The impact of this vulnerability is rated as medium with a base CVSS score of 4.4. It requires high privileges to exploit locally, leading to a high availability impact.

Technical Details of CVE-2021-1114

This section dives into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability involves a use-after-free issue in the kernel crypto node in NVIDIA Linux kernel distributions.

Affected Systems and Versions

NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX devices running all Jetson Linux versions prior to r32.6.1 are affected.

Exploitation Mechanism

The vulnerability can be exploited locally with high privileges. An attacker could trigger the flaw, resulting in a complete denial of service.

Mitigation and Prevention

This section outlines steps to mitigate and prevent the exploitation of CVE-2021-1114.

Immediate Steps to Take

Users should update their NVIDIA Jetson devices to version r32.6.1 or later to address this vulnerability effectively.

Long-Term Security Practices

Regularly apply security patches and updates provided by NVIDIA to ensure the ongoing protection of your devices.

Patching and Updates

Stay informed about security advisories from NVIDIA and promptly apply any new patches or updates released to secure your systems.