Atlant
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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.
Certain WithSecure products allow Local privilege escalation via the lhz archive unpack handler. Rated high severity (CV
Certain WithSecure products allow a Denial of Service because there is an unpack handler crash that can lead to a scanni
Certain WithSecure products have a buffer over-read whereby processing certain fuzz file types may cause a denial of ser
Certain WithSecure products allow a Denial of Service (DoS) in the antivirus engine when scanning a fuzzed PE32 file. Ra
Certain WithSecure products allow Denial of Service via the aepack archive unpack handler. Rated high severity (CVSS 7.5
Certain WithSecure products allow Denial of Service in the aeelf component. Rated high severity (CVSS 7.5), this vulnera
Certain WithSecure products allow Denial of Service (infinite loop). Rated high severity (CVSS 7.5), this vulnerability
Certain WithSecure products allow Denial of Service via a fuzzed PE32 file. Rated high severity (CVSS 7.5), this vulnera
Certain WithSecure products allow an infinite loop in a scanning engine via unspecified file types. Rated high severity
Certain WithSecure products allow an infinite loop in a scanning engine via unspecified file types. Rated high severity
Certain WithSecure products allow a remote crash of a scanning engine via unpacking of a PE file. Rated high severity (C
Certain WithSecure products allow a remote crash of a scanning engine via processing of an import struct in a PE file. R
Same technique Denial Of Service
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External POC / Exploit Code
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