FKIE_CVE-2012-2134

Vulnerability from fkie_nvd - Published: 2014-02-26 15:55 - Updated: 2026-06-16 23:41
Severity
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.
References
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2012-0683.htmlPatch
secalert@redhat.comhttp://secunia.com/advisories/48901Vendor Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/04/24/15
secalert@redhat.comhttp://www.osvdb.org/81619
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=815846
secalert@redhat.comhttps://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS
secalert@redhat.comhttps://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2012-0683.htmlPatch
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/48901Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/04/24/15
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/81619
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=815846
af854a3a-2127-422b-91ae-364da2661108https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS
af854a3a-2127-422b-91ae-364da2661108https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html
Impacted products
Vendor Product Version
martin_nagy bind-dyndb-ldap *
martin_nagy bind-dyndb-ldap 0.1.0
martin_nagy bind-dyndb-ldap 0.1.0
martin_nagy bind-dyndb-ldap 0.2.0
martin_nagy bind-dyndb-ldap 1.0.0
martin_nagy bind-dyndb-ldap 1.0.0
martin_nagy bind-dyndb-ldap 1.1.0
martin_nagy bind-dyndb-ldap 1.1.0
martin_nagy bind-dyndb-ldap 1.1.0
To clipboard 

{
  "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"
    }
  ]
}



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