PT-2021-20226 · F Secure · F-Secure Anti-Virus

Published 2021-10-06 · Updated 2021-10-14 · CVE-2021-33602

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 (affected versions not specified)

Description A vulnerability was discovered in the F-Secure Antivirus engine when it attempts to unpack a zip archive using the LZW decompression method, which can cause the scanning engine to crash. This issue can be exploited remotely by an attacker, resulting in a Denial-of-Service of the Anti-Virus engine.

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

Related Identifiers

CVE-2021-33602

Affected Products

F-Secure Anti-Virus

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-33602 · Security Note
• https://f-secure.com/en/business/support-and-downloads/security-advisories · Vendor Advisory
• https://t.me/cvenotify/21975 · Telegram Post
• https://t.me/cibsecurity/30028 · Telegram Post