CVE-2021-40833

A vulnerability affecting F-Secure antivirus engine was discovered whereby unpacking UPX file can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833	Vendor Advisory
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame	Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f-secure:atlant:-:::::::*
	cpe:2.3:a:f-secure:internet_gatekeeper:-:::::::*
	cpe:2.3:a:f-secure:linux_security:-::::::x86:
	cpe:2.3:a:f-secure:linux_security_64:-:::::::*

Configuration 2 (hide)

AND

cpe:2.3:a:f-secure:elements_endpoint_protection:-:*:*:*:*:*:*:*

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

History

No history.

Information

Published : 2021-11-26 17:15

Updated : 2024-11-21 06:24

NVD link : CVE-2021-40833

Mitre link : CVE-2021-40833

CVE.ORG link : CVE-2021-40833

JSON object : View

Products Affected

f-secure

linux_security_64
linux_security
atlant
internet_gatekeeper
elements_endpoint_protection

apple

macos

microsoft

windows

CWE

CWE-404

Improper Resource Shutdown or Release

{"id": "CVE-2021-40833", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Secondary", "source": "cve-notifications-us@f-secure.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.1}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2021-11-26T17:15:07.903", "references": [{"url": "https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame", "tags": ["Vendor Advisory"], "source": "cve-notifications-us@f-secure.com"}, {"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833", "tags": ["Vendor Advisory"], "source": "cve-notifications-us@f-secure.com"}, {"url": "https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-404"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability affecting F-Secure antivirus engine was discovered whereby unpacking UPX file can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad que afecta al motor antivirus de F-Secure por la que el desempaquetado de archivos UPX puede conllevar a una denegaci\u00f3n de servicio. La vulnerabilidad puede ser explotada remotamente por un atacante. Un ataque con \u00e9xito resultar\u00e1 en una denegaci\u00f3n de servicio del motor antivirus"}], "lastModified": "2024-11-21T06:24:52.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:f-secure:atlant:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3A8AF772-E3DC-4C9B-B3E8-81103D3B7BC4"}, {"criteria": "cpe:2.3:a:f-secure:internet_gatekeeper:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "30BDCB44-B304-4A12-86A0-4849FAB25D39"}, {"criteria": "cpe:2.3:a:f-secure:linux_security:-:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "26113C91-7FD5-4C3B-84F7-6A986CA26461"}, {"criteria": "cpe:2.3:a:f-secure:linux_security_64:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5E48AF8-57C4-4DFB-9E64-E3B3352941E9"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:f-secure:elements_endpoint_protection:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7098F9BA-B2C0-4310-96D5-D0134761F7A6"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve-notifications-us@f-secure.com"}