CVE-2009-2666 (GCVE-0-2009-2666)

Vulnerability from cvelistv5 – Published: 2009-08-07 18:33 – Updated: 2024-08-07 05:59
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2339 records in the last 180 days details
References
URL Tags
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/36175 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/36236 third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2009/dsa-1852 vendor-advisoryx_refsource_DEBIAN
http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt x_refsource_CONFIRM
http://marc.info/?l=oss-security&m=124949601207156&w=2 mailing-listx_refsource_MLIST
http://www.securityfocus.com/archive/1/505530/100… mailing-listx_refsource_BUGTRAQ
http://www.slackware.com/security/viewer.php?l=sl… vendor-advisoryx_refsource_SLACKWARE
http://secunia.com/advisories/36179 third-party-advisoryx_refsource_SECUNIA
http://www.securitytracker.com/id?1022679 vdb-entryx_refsource_SECTRACK
http://osvdb.org/56855 vdb-entryx_refsource_OSVDB
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://www.vupen.com/english/advisories/2009/3184 vdb-entryx_refsource_VUPEN
http://www.vupen.com/english/advisories/2009/2155 vdb-entryx_refsource_VUPEN
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://support.apple.com/kb/HT3937 x_refsource_CONFIRM
http://www.securityfocus.com/bid/35951 vdb-entryx_refsource_BID
Date Public
2009-08-05 00:00
Show details on NVD website
To clipboard 

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                    "criteria": "cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "387ADB82-4FAD-44DA-ABF2-2F4645C4F1E4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:fetchmail:fetchmail:6.3.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CED4FBCB-B6DF-429D-871D-2A9F7F59E63B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:fetchmail:fetchmail:6.3.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "237F86BD-82CD-4A37-BF64-F103B1304F0C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:fetchmail:fetchmail:6.3.9:*:*:*:*:*:*:*",
                    "matchCriteriaId": "667847D9-58DD-4693-B544-593AC6D7746D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:fetchmail:fetchmail:6.3.9:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "12BA2E29-5547-45F5-BC46-1A7B4A222055",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "socket.c in fetchmail before 6.3.11 does not properly handle a \u0027\\0\u0027 character in a domain name in the subject\u0027s 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."
          },
          {
            "lang": "es",
            "value": "socket.c en fetchmail antes de v6.3.11 no maneja correctamente un caracter \u0027\\ 0\u0027 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\u0026m=124949601207156\u0026w=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",
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            ],
            "url": "http://secunia.com/advisories/36179"
          },
          {
            "source": "cve@mitre.org",
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            ],
            "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"
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            "url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2009\u0026m=slackware-security.543463"
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            "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"
          },
          {
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            "url": "http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html"
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          {
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          },
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          },
          {
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          },
          {
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            "url": "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"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:11:01+00:00",
      "cve": "CVE-2009-2666",
      "id": "CVE-2009-2666",
      "initial_release_date": "2009-08-05T00:00:00+00:00",
      "product_status:fixed": "126",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "fetchmail: SSL null terminator bypass",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-2666.json",
      "version": "3"
    }
  }
}



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