CVE-2021-33602— Denial-of-Service (DoS) Vulnerability
Quick assessment
Affected
F-Secure F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit) F-Secure Linux Security 64 F-Secure Atlant & F-Secure Cloud Protection for Salesforce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
F-secure F-Secure Anti-Virus是芬兰F-Secure（F-secure）公司的一套杀毒软件。该软件集成了多个病毒监测引擎，可对操作系统进行实时病毒扫描，并提供了强大的后台管理功能。 F-Secure Anti-Virus engine存在安全漏洞，该漏洞源于当F-Secure防病毒引擎试图解压缩压缩文件(LZW解压方法)时，发现了一个影响F-Secure防病毒引擎的漏洞，这可能导致扫描引擎崩溃。该漏洞可被攻击者远程利用。攻击成功将导致防病毒引擎拒绝服务。
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I. Basic Information for CVE-2021-33602
Vulnerability Information
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Vulnerability Title
Denial-of-Service (DoS) Vulnerability
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
F-Secure Anti-Virus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F-secure F-Secure Anti-Virus是芬兰F-Secure（F-secure）公司的一套杀毒软件。该软件集成了多个病毒监测引擎，可对操作系统进行实时病毒扫描，并提供了强大的后台管理功能。 F-Secure Anti-Virus engine存在安全漏洞，该漏洞源于当F-Secure防病毒引擎试图解压缩压缩文件(LZW解压方法)时，发现了一个影响F-Secure防病毒引擎的漏洞，这可能导致扫描引擎崩溃。该漏洞可被攻击者远程利用。攻击成功将导致防病毒引擎拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| F-Secure | F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit) F-Secure Linux Security 64 F-Secure Atlant & F-Secure Cloud Protection for Salesforce | All Version | - |
|
II. Public POCs for CVE-2021-33602
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-33602 (1)
IV. Related Vulnerabilities
Same vendor: F-Secure
V. Comments for CVE-2021-33602
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