CVE-2012-2134 (GCVE-0-2012-2134)

Vulnerability from cvelistv5 – Published: 2014-02-26 15:00 – Updated: 2024-08-06 19:26
VLAI
Summary
The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which allows remote attackers to cause a denial of service (infinite loop and named server hang) via a non-alphabet character in the base DN in an LDAP search DNS query.
Severity
No CVSS data available.
CWE
  • n/a
References
URL Tags
http://secunia.com/advisories/48901 third-party-advisoryx_refsource_SECUNIA
https://www.redhat.com/archives/freeipa-users/201… mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=815846 x_refsource_CONFIRM
https://git.fedorahosted.org/cgit/bind-dyndb-ldap… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-0683.html vendor-advisoryx_refsource_REDHAT
http://www.osvdb.org/81619 vdb-entryx_refsource_OSVDB
http://www.openwall.com/lists/oss-security/2012/0… mailing-listx_refsource_MLIST
Date Public
2012-04-24 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T19:26:08.509Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "48901",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/48901"
          },
          {
            "name": "[Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=815846"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS"
          },
          {
            "name": "RHSA-2012:0683",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0683.html"
          },
          {
            "name": "81619",
            "tags": [
              "vdb-entry",
              "x_refsource_OSVDB",
              "x_transferred"
            ],
            "url": "http://www.osvdb.org/81619"
          },
          {
            "name": "[oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2012/04/24/15"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2012-04-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which allows remote attackers to cause a denial of service (infinite loop and named server hang) via a non-alphabet character in the base DN in an LDAP search DNS query."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2014-02-26T14:57:02.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "48901",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/48901"
        },
        {
          "name": "[Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=815846"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS"
        },
        {
          "name": "RHSA-2012:0683",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2012-0683.html"
        },
        {
          "name": "81619",
          "tags": [
            "vdb-entry",
            "x_refsource_OSVDB"
          ],
          "url": "http://www.osvdb.org/81619"
        },
        {
          "name": "[oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2012/04/24/15"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2012-2134",
    "datePublished": "2014-02-26T15:00:00.000Z",
    "dateReserved": "2012-04-04T00:00:00.000Z",
    "dateUpdated": "2024-08-06T19:26:08.509Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2012-2134",
      "date": "2026-10-17",
      "epss": "0.02325",
      "percentile": "0.83211"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "n/a",
                "vendor": "n/a",
                "versions": [
                  {
                    "status": "affected",
                    "version": "n/a"
                  }
                ]
              }
            ],
            "source": "secalert@redhat.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:*:b2:*:*:*:*:*:*",
                    "matchCriteriaId": "E6CA1920-6C70-4875-ADED-1F15A4F2A8BB",
                    "versionEndIncluding": "1.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.1.0:a1:*:*:*:*:*:*",
                    "matchCriteriaId": "6EAFBB42-05EE-44DB-85D4-D622C2B678E4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.1.0:b:*:*:*:*:*:*",
                    "matchCriteriaId": "5745D406-24EF-408D-8A57-2AEEB09FF41C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.2.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CA5463AE-3E88-4824-AB42-93B5E6FE8573",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.0.0:b1:*:*:*:*:*:*",
                    "matchCriteriaId": "D8BA67DA-D03F-499E-8BCF-94C06A814383",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.0.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "1FA76B53-60B9-40D9-A1FC-41FE6CED3148",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.1.0:a1:*:*:*:*:*:*",
                    "matchCriteriaId": "00063DB2-31C6-4580-AB99-72466B3FB33A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.1.0:a2:*:*:*:*:*:*",
                    "matchCriteriaId": "374C3768-2379-4F82-8826-0B3EC53DA38C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.1.0:b1:*:*:*:*:*:*",
                    "matchCriteriaId": "E72C8313-8F0F-4826-B96D-2B08685521C4",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which allows remote attackers to cause a denial of service (infinite loop and named server hang) via a non-alphabet character in the base DN in an LDAP search DNS query."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n handle_connection_error en ldap_helper.c en bind-dyndb-ldap anterior a 1.1.0rc1 no maneja debidamente los errores de consulta LDAP, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicios (bucle infinito y cuelgue del servidor nombrado) a trav\u00e9s de un caracter no alfab\u00e9tico en la base DN en una consulta DNS de una b\u00fasqueda LDAP."
          }
        ],
        "id": "CVE-2012-2134",
        "lastModified": "2026-06-16T23:41:03.597",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2014-02-26T15:55:08.877",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0683.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/48901"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2012/04/24/15"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.osvdb.org/81619"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=815846"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0683.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/48901"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2012/04/24/15"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.osvdb.org/81619"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=815846"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T12:34:48+00:00",
      "cve": "CVE-2012-2134",
      "id": "CVE-2012-2134",
      "initial_release_date": "2012-04-24T00:00:00+00:00",
      "product_status:fixed": "18",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-2134.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

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.


Loading…