CVE-2021-40832

Denial-of-Service (DoS) Vulnerability

Description

A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVRDL unpacking module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service (DoS) of the Anti-Virus engine.

Remediation

Solution:

FIX No User action is required. The required fix has been published through automatic update channel with Capricorn update 2021-09-29_03

5.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.30%

Vendor Advisory f-secure.com Vendor Advisory f-secure.com

Affected: F-Secure F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit) F-Secure Linux Security 64 F-Secure Atlant F-Secure Cloud Protection for Salesforce and Cloud Protection for Microsoft Office 365

References

Link	Tags
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	vendor advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40832	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-40832?: CVE-2021-40832 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40832?: To fix CVE-2021-40832: FIX No User action is required. The required fix has been published through automatic update channel with Capricorn update 2021-09-29_03
Is CVE-2021-40832 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-40832 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-40832?: CVE-2021-40832 affects F-Secure F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit) F-Secure Linux Security 64 F-Secure Atlant F-Secure Cloud Protection for Salesforce and Cloud Protection for Microsoft Office 365.

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