Internet Gatekeeper
CVE-2021-33602
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
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. Affected products include: F-Secure Atlant, F-Secure Cloud Protection, F-Secure Internet Gatekeeper, F-Secure Linux Security.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Same technique Denial Of Service
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External POC / Exploit Code
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