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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*", "matchCriteriaId": "BE8CF239-5E91-4708-B594-FA825C69DFE9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DNS name (rhost) entry that contains a substring that is interpreted as an IP address, a different vulnerability than CVE-2007-4321."}, {"lang": "es", "value": "el archivo filter.d/wuftpd.conf en Fail2ban v0.8.3 utiliza una expresi\u00f3n regular incorrecta que permite a los atacantes remotos causar una denegaci\u00f3n de servicio (fallos de autenticaci\u00f3n forzados) a trav\u00e9s de una entrada de nombre DNS de resoluci\u00f3n reversa (rhost) manipulada que contiene una subcadena que es interpretada como una direcci\u00f3n IP, diferente vulnerabilidad que CVE-2007-4321."}], "id": "CVE-2009-0362", "lastModified": "2026-04-23T00:35:47.467", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-02-13T01:30:00.360", "references": [{"source": "cve@mitre.org", "tags": ["Exploit"], "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/33890"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/33734"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/33890"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/33734"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "fail2ban: remote DoS via crafted domain names", "id": "485461", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=485461"}, "csaw": false, "details": ["filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DNS name (rhost) entry that contains a substring that is interpreted as an IP address, a different vulnerability than CVE-2007-4321."], "name": "CVE-2009-0362", "public_date": "2009-02-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-0362"], "threat_severity": "Important"}

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