CVE-2021-3510 : What You Need to Know

Zephyr JSON decoder incorrectly decodes array of array. Learn about the impact, technical details, and mitigation of CVE-2021-3510.

Understanding CVE-2021-3510

This section provides insight into the nature and severity of the CVE-2021-3510 vulnerability.

What is CVE-2021-3510?

CVE-2021-3510 involves Zephyr JSON decoder incorrectly decoding array of array, affecting versions >1.14.0 and >2.5.0.

The Impact of CVE-2021-3510

The vulnerability poses a high risk with a CVSS v3.1 base score of 7.5 due to the incorrect decoding of the array of array.

Technical Details of CVE-2021-3510

Delve deeper into the technical aspects of CVE-2021-3510 to understand how it can impact systems.

Vulnerability Description

Zephyr JSON decoder's incorrect handling of arrays can lead to a CWE-588: Attempt to Access Child of a Non-structure Pointer.

Affected Systems and Versions

Zephyr versions >=1.14.0 and >=2.5.0 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited through network-based attack vectors with low complexity, resulting in high availability impact.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-3510 to enhance the security of Zephyr-based systems.

Immediate Steps to Take

Ensure timely patching and updates to affected Zephyr versions to eliminate the vulnerability.

Long-Term Security Practices

Implement secure coding practices and regular security audits to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories from Zephyr and apply patches promptly to protect systems from potential exploits.