CVE-2009-2474 (GCVE-0-2009-2474)

Vulnerability from cvelistv5 – Published: 2009-08-21 17:00 – Updated: 2024-08-07 05:52
VLAI
Summary
neon before 0.28.6, when OpenSSL or GnuTLS is used, 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
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1131 records in the last 180 days details
References
URL Tags
http://lists.manyfish.co.uk/pipermail/neon/2009-A… mailing-listx_refsource_MLIST
http://lists.manyfish.co.uk/pipermail/neon/2009-A… mailing-listx_refsource_MLIST
http://support.apple.com/kb/HT4435 x_refsource_CONFIRM
http://www.vupen.com/english/advisories/2009/2341 vdb-entryx_refsource_VUPEN
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.securityfocus.com/bid/36079 vdb-entryx_refsource_BID
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://secunia.com/advisories/36371 third-party-advisoryx_refsource_SECUNIA
http://www.ubuntu.com/usn/usn-835-1 vendor-advisoryx_refsource_UBUNTU
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/36799 third-party-advisoryx_refsource_SECUNIA
Date Public
2009-08-18 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-07T05:52:14.820Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[neon] 20090818 neon: release 0.28.6 (SECURITY)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html"
          },
          {
            "name": "[neon] 20090818 CVE-2009-2474: fix handling of NUL in SSL cert subject names",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001046.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://support.apple.com/kb/HT4435"
          },
          {
            "name": "ADV-2009-2341",
            "tags": [
              "vdb-entry",
              "x_refsource_VUPEN",
              "x_transferred"
            ],
            "url": "http://www.vupen.com/english/advisories/2009/2341"
          },
          {
            "name": "oval:org.mitre.oval:def:11721",
            "tags": [
              "vdb-entry",
              "signature",
              "x_refsource_OVAL",
              "x_transferred"
            ],
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11721"
          },
          {
            "name": "MDVSA-2009:221",
            "tags": [
              "vendor-advisory",
              "x_refsource_MANDRIVA",
              "x_transferred"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:221"
          },
          {
            "name": "36079",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/36079"
          },
          {
            "name": "APPLE-SA-2010-11-10-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_APPLE",
              "x_transferred"
            ],
            "url": "http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html"
          },
          {
            "name": "36371",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/36371"
          },
          {
            "name": "USN-835-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/usn-835-1"
          },
          {
            "name": "FEDORA-2009-8815",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html"
          },
          {
            "name": "FEDORA-2009-8794",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html"
          },
          {
            "name": "36799",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/36799"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2009-08-18T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "neon before 0.28.6, when OpenSSL or GnuTLS is used, 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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-09-18T12:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[neon] 20090818 neon: release 0.28.6 (SECURITY)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html"
        },
        {
          "name": "[neon] 20090818 CVE-2009-2474: fix handling of NUL in SSL cert subject names",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001046.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://support.apple.com/kb/HT4435"
        },
        {
          "name": "ADV-2009-2341",
          "tags": [
            "vdb-entry",
            "x_refsource_VUPEN"
          ],
          "url": "http://www.vupen.com/english/advisories/2009/2341"
        },
        {
          "name": "oval:org.mitre.oval:def:11721",
          "tags": [
            "vdb-entry",
            "signature",
            "x_refsource_OVAL"
          ],
          "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11721"
        },
        {
          "name": "MDVSA-2009:221",
          "tags": [
            "vendor-advisory",
            "x_refsource_MANDRIVA"
          ],
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:221"
        },
        {
          "name": "36079",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/36079"
        },
        {
          "name": "APPLE-SA-2010-11-10-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_APPLE"
          ],
          "url": "http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html"
        },
        {
          "name": "36371",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/36371"
        },
        {
          "name": "USN-835-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/usn-835-1"
        },
        {
          "name": "FEDORA-2009-8815",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html"
        },
        {
          "name": "FEDORA-2009-8794",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html"
        },
        {
          "name": "36799",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/36799"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2009-2474",
    "datePublished": "2009-08-21T17:00:00.000Z",
    "dateReserved": "2009-07-15T00:00:00.000Z",
    "dateUpdated": "2024-08-07T05:52:14.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2009-2474",
      "date": "2026-11-07",
      "epss": "0.01493",
      "percentile": "0.74301"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:webdav:neon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "55788024-3E66-4489-AC67-8162BB5E8182",
                    "versionEndExcluding": "0.28.6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "46E5D24A-8CA0-4590-9F35-F684D573D030",
                    "versionEndExcluding": "10.6.5",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "5C18C3CD-969B-4AA3-AE3A-BA4A188F8BFF",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "C91D2DBF-6DA7-4BA2-9F29-8BD2725A4701",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4747CC68-FAF4-482F-929A-9DA6C24CB663",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7000D33B-F3C7-43E8-8FC7-9B97AADC3E12",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B3BB5EDB-520B-4DEF-B06E-65CA13152824",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "neon before 0.28.6, when OpenSSL or GnuTLS is used, 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": "neon, en versiones anteriores a la 0.28.6, cuando OpenSSL est\u00e1 habilitado, no maneja adecuadamente un caracter \u0027\\0\u0027 en un nombre de dominio, en el campo Common Name (CN) del asunto 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-2009-2474",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.8,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 4.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": true,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2009-08-21T17:30:00.360",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001046.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://secunia.com/advisories/36371"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://secunia.com/advisories/36799"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Broken Link"
            ],
            "url": "http://support.apple.com/kb/HT4435"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:221"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/36079"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/usn-835-1"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Permissions Required"
            ],
            "url": "http://www.vupen.com/english/advisories/2009/2341"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11721"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.manyfish.co.uk/pipermail/neon/2009-August/001046.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://secunia.com/advisories/36371"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://secunia.com/advisories/36799"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Broken Link"
            ],
            "url": "http://support.apple.com/kb/HT4435"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:221"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/36079"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/usn-835-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Permissions Required"
            ],
            "url": "http://www.vupen.com/english/advisories/2009/2341"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11721"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-326"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:10:52+00:00",
      "cve": "CVE-2009-2474",
      "id": "CVE-2009-2474",
      "initial_release_date": "2009-08-18T00:00:00+00:00",
      "product_status:fixed": "150",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "neon: Improper verification of x509v3 certificate with NULL (zero) byte in certain fields",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-2474.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.