CVE-2021-21903 : Security Advisory and Response

A stack-based buffer overflow vulnerability exists in Garrett Metal Detectors' iC Module CMA Version 5.0. This vulnerability can be triggered by a specially-crafted packet, causing a stack-based buffer overflow during a call to strcpy.

Understanding CVE-2021-21903

This section explores the implications and technical details of CVE-2021-21903.

What is CVE-2021-21903?

CVE-2021-21903 is a stack-based buffer overflow vulnerability in Garrett Metal Detectors' iC Module CMA Version 5.0. An attacker can exploit this by sending a malicious packet.

The Impact of CVE-2021-21903

The vulnerability has a CVSS base score of 9.8, classified as Critical, with high impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2021-21903

Dive deeper into the technical aspects of CVE-2021-21903.

Vulnerability Description

The vulnerability arises from a stack-based buffer overflow in the CMA check_udp_crc function of Garrett Metal Detectors' iC Module CMA Version 5.0.

Affected Systems and Versions

Garrett Metal Detectors iC Module CMA Version 5.0 is specifically affected by this vulnerability.

Exploitation Mechanism

An attacker can exploit this vulnerability by sending a specially-crafted packet to trigger a stack-based buffer overflow during a call to strcpy.

Mitigation and Prevention

Discover how to address and prevent CVE-2021-21903 from affecting your systems.

Immediate Steps to Take

It is crucial to apply vendor-supplied patches or updates to mitigate the vulnerability. Additionally, network segmentation and traffic monitoring can help detect and prevent exploitation.

Long-Term Security Practices

Implement secure coding practices, input validation, and regular security assessments to prevent buffer overflow vulnerabilities in the long term.

Patching and Updates

Regularly check for security advisories from Garrett Metal Detectors and apply patches promptly.