CVE-2021-46667 : Vulnerability Insights and Analysis

MariaDB before 10.6.5 has a sql_lex.cc integer overflow vulnerability that can lead to an application crash.

Understanding CVE-2021-46667

This CVE identifier refers to a specific vulnerability in MariaDB before version 10.6.5.

What is CVE-2021-46667?

CVE-2021-46667 is a vulnerability found in MariaDB versions prior to 10.6.5. It involves an integer overflow issue in sql_lex.cc, which can result in the crashing of the application.

The Impact of CVE-2021-46667

The vulnerability can be exploited to cause a denial of service by crashing the affected application or database system, leading to potential downtime and disruption of services.

Technical Details of CVE-2021-46667

This section covers the technical aspects of the CVE in more detail.

Vulnerability Description

The vulnerability in MariaDB before 10.6.5 is due to an integer overflow in the sql_lex.cc file, which can be triggered by a specially crafted query or input.

Affected Systems and Versions

Product: MariaDB
Vendor: MariaDB
Affected Version: < 10.6.5

Exploitation Mechanism

The vulnerability can be exploited by an attacker crafting specific SQL queries to trigger the integer overflow, resulting in a crash of the application.

Mitigation and Prevention

It is essential to take immediate and long-term measures to address and prevent the exploitation of CVE-2021-46667.

Immediate Steps to Take

Update MariaDB to version 10.6.5 or later to mitigate the vulnerability.
Monitor for any abnormal behavior or crashes in the application that could indicate exploitation.

Long-Term Security Practices

Regularly update and patch software to ensure that known vulnerabilities are addressed promptly.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities proactively.

Patching and Updates

Apply security patches released by MariaDB promptly to fix the vulnerability and enhance overall system security.