CVE-2021-33602 — MEDIUM (5.5)

Vulnerability Description

A vulnerability affecting the F-Secure Antivirus engine was discovered when the engine tries to unpack a zip archive (LZW decompression method), and this can crash the scanning engine. The vulnerability can be exploited remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
F-Secure	Atlant	All versions
F-Secure	Cloud Protection	All versions
F-Secure	Internet Gatekeeper	All versions
F-Secure	Linux Security	All versions

References

https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory

FAQ

What is CVE-2021-33602?

CVE-2021-33602 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A vulnerability affecting the F-Secure Antivirus engine was discovered when the engine tries to unpack a zip archive (LZW decompression method), and this can crash the scanning engine. The vulnerabili...

How severe is CVE-2021-33602?

CVE-2021-33602 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-33602?

Check the references section above for vendor advisories and patch information. Affected products include: F-Secure Atlant, F-Secure Cloud Protection, F-Secure Internet Gatekeeper, F-Secure Linux Security.