CVE-2021-40837

Denial-of-Service (DoS) Vulnerability

Description

A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.

Remediation

Solution:

FIX: No User action is required. The required fix has been published through automatic update channel with Capricorn update 2022-02-01_01

4.6

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.25%

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 Internet Gatekeeper & F-Secure Security Cloud

References

Link	Tags
https://www.f-secure.com/en/business/support-and-downloads/security-advisories	vendor advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-40837?: CVE-2021-40837 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40837?: To fix CVE-2021-40837: FIX: No User action is required. The required fix has been published through automatic update channel with Capricorn update 2022-02-01_01
Is CVE-2021-40837 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-40837 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-2021-40837?: CVE-2021-40837 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 Internet Gatekeeper & F-Secure Security Cloud.

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