CVE-2021-3622 : Vulnerability Insights and Analysis

A flaw in the hivex library allows an attacker to exploit a specially crafted Windows Registry file, leading to a stack overflow. This vulnerability impacts system availability.

Understanding CVE-2021-3622

This CVE identifies a vulnerability in the hivex library, affecting system availability due to a stack overflow.

What is CVE-2021-3622?

CVE-2021-3622 is a flaw in the hivex library that enables attackers to trigger a stack overflow by injecting a malicious Windows Registry file.

The Impact of CVE-2021-3622

The primary risk posed by this vulnerability is to the availability of the system, which could be compromised by exploiting the flaw.

Technical Details of CVE-2021-3622

This section delves into the specifics of the vulnerability, including the description, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in the hivex library permits attackers to induce a stack overflow by supplying a specifically crafted Windows Registry file.

Affected Systems and Versions

The vulnerability impacts hivex version 1.3.21.

Exploitation Mechanism

By inputting a malicious Windows Registry file, attackers can cause hivex to recursively call the _get_children() function, leading to a stack overflow.

Mitigation and Prevention

Discover the necessary steps to address the CVE-2021-3622 vulnerability and prevent potential exploits.

Immediate Steps to Take

Organizations should apply relevant patches and updates to mitigate the vulnerability immediately.

Long-Term Security Practices

Implement robust security measures and best practices to enhance the overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

Regularly update software and apply patches provided by the vendor to address security vulnerabilities effectively.