CVE-2021-40833: Denial-of-Service (DoS) Vulnerability
First published: Fri Nov 26 2021(Updated: )
A vulnerability affecting F-Secure antivirus engine was discovered whereby unpacking UPX file can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.
Credit: cve-notifications-us@f-secure.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| F-Secure Atlant | ||
| F-secure Internet Gatekeeper | ||
| F-Secure Linux Security | ||
| F-secure Linux Security 64 | ||
| F-secure Elements Endpoint Protection | ||
| Apple macOS | ||
| Microsoft Windows |
Remedy
FIX No User action is required. The required fix has been published through automatic update channel with Capricorn update 2021-11-22_03
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Reference Links
Frequently Asked Questions
What is CVE-2021-40833?
CVE-2021-40833 is a vulnerability affecting F-Secure antivirus engine that can lead to denial-of-service by unpacking UPX files.
How can the CVE-2021-40833 vulnerability be exploited?
The CVE-2021-40833 vulnerability can be exploited remotely by an attacker.
What is the severity of CVE-2021-40833?
CVE-2021-40833 has a severity rating of 5.5 (medium).
Which software is affected by CVE-2021-40833?
F-Secure antivirus engines such as Atlant, Internet Gatekeeper, Linux Security, Linux Security 64, and Elements Endpoint Protection are affected by CVE-2021-40833.
How can I learn more about CVE-2021-40833?
You can learn more about CVE-2021-40833 from the F-Secure Vulnerability Reward Program Hall of Fame and the F-Secure security advisories page.
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