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Authority, a related issue to CVE-2009-2408."}, {"lang": "es", "value": "socket.c en fetchmail antes de v6.3.11 no maneja correctamente un caracter '\\ 0' en el nombre de dominio en el campo Common Name (CN) de un certificado X.509, lo cual permite a atacacantes hombre-en-el-medio (man-in-the-middle) suplantar servidores SSL a su elecci\u00f3n a trav\u00e9s de certificados manipulados expedidos por una Autoridad de Certificaci\u00f3n (CA) leg\u00edtima, una cuesti\u00f3n relacionada con CVE-2009-2408."}], "id": "CVE-2009-2666", "lastModified": "2026-04-23T00:35:47.467", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-08-07T19:00:01.063", "references": [{"source": "cve@mitre.org", "url": "http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt"}, {"source": "cve@mitre.org", "url": "http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=oss-security&m=124949601207156&w=2"}, {"source": "cve@mitre.org", "url": "http://osvdb.org/56855"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36175"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36179"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36236"}, {"source": "cve@mitre.org", "url": "http://support.apple.com/kb/HT3937"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2009/dsa-1852"}, {"source": "cve@mitre.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:201"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/archive/1/505530/100/0/threaded"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/35951"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id?1022679"}, {"source": "cve@mitre.org", "url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.543463"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/2155"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/3184"}, {"source": "cve@mitre.org", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11059"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://marc.info/?l=oss-security&m=124949601207156&w=2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/56855"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36175"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36179"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/36236"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://support.apple.com/kb/HT3937"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2009/dsa-1852"}, {"source": 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"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11059"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-310"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2009:1427", "cpe": "cpe:/o:redhat:enterprise_linux:3", "package": "fetchmail-0:6.2.0-3.el3.5", "product_name": "Red Hat Enterprise Linux 3", "release_date": "2009-09-08T00:00:00Z"}, {"advisory": "RHSA-2009:1427", "cpe": "cpe:/o:redhat:enterprise_linux:4", "package": "fetchmail-0:6.2.5-6.0.1.el4_8.1", "product_name": "Red Hat Enterprise Linux 4", "release_date": "2009-09-08T00:00:00Z"}, {"advisory": "RHSA-2009:1427", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "fetchmail-0:6.3.6-1.1.el5_3.1", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2009-09-08T00:00:00Z"}], "bugzilla": {"description": "fetchmail: SSL null terminator bypass", "id": "515804", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=515804"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "status": "verified"}, "details": ["socket.c in fetchmail before 6.3.11 does not properly handle a '\\0' character in a domain name in the subject's Common Name (CN) 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-2009-2666", "public_date": "2009-08-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-2666\nhttps://nvd.nist.gov/vuln/detail/CVE-2009-2666"], "threat_severity": "Moderate"}

{}