fkie_cve-2011-1527
Vulnerability from fkie_nvd
Published
2011-10-20 21:55
Modified
2025-04-11 00:51
Severity ?
Summary
The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions.
References
cve@mitre.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
cve@mitre.orghttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
cve@mitre.orghttp://www.kb.cert.org/vuls/id/659251US Government Resource
cve@mitre.orghttp://www.mandriva.com/security/advisories?name=MDVSA-2011:159
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2011-1379.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
af854a3a-2127-422b-91ae-364da2661108http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/659251US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2011-1379.htmlVendor Advisory
Impacted products
Vendor Product Version
mit kerberos_5 1.9
mit kerberos_5 1.9.1


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*",
              "matchCriteriaId": "86738633-C081-4440-9F75-A775D6DF2228",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "C7BCFFEE-EA7A-4F26-97AA-31128A179745",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions."
    },
    {
      "lang": "es",
      "value": "El plug-in kdb_ldap en el centro de distribuci\u00f3n de claves  (KDC) en MIT Kerberos 5 (krb5) v1.9 a v1.9.1, cuando el back end LDAP es utilizado, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (puntero a NULL y ca\u00edda del demonio) a trav\u00e9s de una operaci\u00f3n de kinit en la cadena incorrecta, en relaci\u00f3n con la is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, y las funciones process_as_req."
    }
  ],
  "id": "CVE-2011-1527",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-10-20T21:55:00.857",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/659251"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:159"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1379.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/659251"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:159"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1379.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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