CVE-2021-3625 : What You Need to Know

Buffer overflow in Zephyr USB DFU DNLOAD that affects Zephyr versions >= v2.5.0. Learn about the impact, technical details, and mitigation strategies.

Understanding CVE-2021-3625

This CVE describes a buffer overflow vulnerability in Zephyr USB DFU DNLOAD affecting versions >= v2.5.0.

What is CVE-2021-3625?

CVE-2021-3625 is a heap-based buffer overflow vulnerability (CWE-122) in Zephyr USB DFU DNLOAD.

The Impact of CVE-2021-3625

The vulnerability has a CVSS base score of 9.6, indicating a critical impact with high availability and integrity impact.

Technical Details of CVE-2021-3625

Explore the specifics of the vulnerability to understand affected systems, versions, and exploitation mechanisms.

Vulnerability Description

The vulnerability involves a heap-based buffer overflow in Zephyr USB DFU DNLOAD.

Affected Systems and Versions

Zephyr versions >= v2.5.0 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through adjacent network access, leading to critical consequences.

Mitigation and Prevention

Discover immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2021-3625.

Immediate Steps to Take

Users should apply relevant patches and updates provided by Zephyrproject-rtos to address this vulnerability.

Long-Term Security Practices

Implement strong security measures, regularly update systems, and conduct security assessments to prevent similar exploits.

Patching and Updates

Stay informed about security advisories from Zephyrproject-rtos and promptly apply patches to secure your systems.