CVE-2009-3941

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{"lang": "es", "value": "Martin Lambers mpop versiones anteriores a v1.4.19, cuando usa OpenSSL, no maneja adecuadamente un car\u00e1cter '\\0' en un nombre de dominio (1) en el campo nombre com\u00fan del sujeto o (2) en el campo nombre alternativo del sujeto de un certificado X.509, permitiendo que atacantes de hombre en medio (man-in-the-middle) suplantar a servidores SSL de su elecci\u00f3n mediante un certificado modificado emitido por una Autoridad de Certificaci\u00f3n leg\u00edtima, estando relacionado con el CVE-2009-2408."}], "id": "CVE-2009-3941", "lastModified": "2026-06-16T23:12:40.243", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-11-16T19:30:01.047", "references": [{"source": "cve@mitre.org", "tags": ["Patch"], "url": "http://mpop.sourceforge.net/news.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/37312"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/3225"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://mpop.sourceforge.net/news.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/37312"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/3225"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-310"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "mpop NULL character certificate flaw", "id": "537927", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=537927"}, "csaw": false, "details": ["Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."], "name": "CVE-2009-3941", "public_date": "2009-10-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-3941"], "threat_severity": "Moderate"}

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