CVE-2021-33599

Denial-of-Service (DoS) Vulnerability

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.

Se ha detectado una vulnerabilidad que afecta al motor de F-Secure Antivirus por la que el escaneo de un archivo WIM puede conllevar a una denegación de servicio (bucle infinito y congelación del escáner del motor AV). La vulnerabilidad puede ser explotada remotamente por un atacante. Un ataque con éxito resultará en una denegación de servicio del motor antivirus

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-05-27 CVE Reserved
2021-09-07 CVE Published
2024-05-23 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	2021-09-09
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33599	2021-09-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
F-secure Search vendor "F-secure"	Elements Endpoint Protection Search vendor "F-secure" for product "Elements Endpoint Protection"	-	-	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
F-secure Search vendor "F-secure"	Elements Endpoint Protection Search vendor "F-secure" for product "Elements Endpoint Protection"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
F-secure Search vendor "F-secure"		Atlant Search vendor "F-secure" for product "Atlant"				-		-		Affected
F-secure Search vendor "F-secure"		Cloud Protection For Salesforce Search vendor "F-secure" for product "Cloud Protection For Salesforce"				-		-		Affected
F-secure Search vendor "F-secure"		Linux Security Search vendor "F-secure" for product "Linux Security"				-		-		Affected