PT-2021-22969 · F Secure · F-Secure Antivirus Engine

Published 2021-11-26 · Updated 2021-11-30 · CVE-2021-40833

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions F-Secure antivirus engine (affected versions not specified)

Description A vulnerability was discovered in the F-Secure antivirus engine where unpacking a UPX file can lead to a denial-of-service. This issue can be exploited remotely by an attacker, resulting in the denial-of-service of the antivirus engine.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2021-40833

Affected Products

F-Secure Antivirus Engine

References · 4

• https://f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40833 · Security Note
• https://f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame · Vendor Advisory
• https://t.me/cibsecurity/33001 · Telegram Post