CVE-2021-40832 : Vulnerability Insights and Analysis

This CVE relates to a Denial-of-Service (DoS) vulnerability found in F-Secure Atlant, affecting various F-Secure endpoint protection products across different platforms.

Understanding CVE-2021-40832

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2021-40832?

The vulnerability in F-Secure Atlant can lead to a Denial-of-Service (DoS) scenario by causing the Anti-Virus engine to crash while processing certain files.

The Impact of CVE-2021-40832

The ability for remote attackers to trigger this exploit could result in a DoS situation for the targeted Anti-Virus engine.

Technical Details of CVE-2021-40832

Here we delve into the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises from the AVRDL unpacking module component used in specific F-Secure products, leading to crashes when analyzing corrupted files.

Affected Systems and Versions

Vendor: F-Secure
Affected Products: F-Secure endpoint protection products on Windows and Mac, F-Secure Linux Security, F-Secure Atlant, F-Secure Cloud Protection for Salesforce, and Cloud Protection for Microsoft Office 365
Affected Version: All Version

Exploitation Mechanism

The exploit can be activated remotely by malicious actors, causing a successful DoS attack on the Anti-Virus engine.

Mitigation and Prevention

Learn about the necessary steps to address and prevent this vulnerability.

Immediate Steps to Take

Users are not required to take any specific action as the fix has been automatically distributed through the Capricorn update on 2021-09-29_03.

Long-Term Security Practices

Regularly update and patch F-Secure products to stay protected against potential security threats.
Implement network security measures to detect and block malicious traffic.

Patching and Updates

Ensure the timely application of security patches from F-Secure to mitigate any existing vulnerabilities.