CVE-2021-46658 : Security Advisory and Response

This CVE-2021-46658 article provides details about a vulnerability in MariaDB before version 10.6.3 that can lead to an application crash due to mishandling of with_window_func=true for a subquery.

Understanding CVE-2021-46658

This section delves into the specifics of the CVE-2021-46658 vulnerability.

What is CVE-2021-46658?

The vulnerability known as save_window_function_values in MariaDB before 10.6.3 triggers an application crash because it incorrectly processes with_window_func=true for a subquery.

The Impact of CVE-2021-46658

The vulnerability can result in an application crash due to improper handling of certain query parameters.

Technical Details of CVE-2021-46658

This section outlines the technical aspects of CVE-2021-46658.

Vulnerability Description

The vulnerability in MariaDB before 10.6.3 arises from incorrect handling of with_window_func=true for a subquery, leading to potential application crashes.

Affected Systems and Versions

Affected Systems: Not applicable
Affected Versions: MariaDB versions before 10.6.3

Exploitation Mechanism

The vulnerability can be exploited by malicious actors by crafting specific queries that trigger the mishandling of with_window_func=true, resulting in application crashes.

Mitigation and Prevention

In this section, we discuss mitigation strategies and preventive measures for CVE-2021-46658.

Immediate Steps to Take

Update MariaDB to version 10.6.3 or higher to mitigate the vulnerability.
Monitor for any unusual application crashes that could indicate exploitation of this vulnerability.

Long-Term Security Practices

Regularly update software and dependencies to prevent known vulnerabilities.
Implement secure coding practices to reduce the risk of similar issues in the future.

Patching and Updates

Apply patches and updates provided by MariaDB to address the vulnerability and enhance system security.