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CVE-2010-0433

Estado: ModificadaMedia (4.3)—

The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Openssl — Openssl

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2010-0433",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-03-05T19:30:00.547",
  "references": [
    {
      "url": "http://aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://cvs.openssl.org/chngview?cn=19374",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca4b4c/66aa896c3a78b2f7",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=127128920008563&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=127557640302499&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/39461",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/39932",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/42724",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/42733",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/43311",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.mail-archive.com/dovecot%40dovecot.org/msg26224.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:076",
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    {
      "url": "http://www.openssl.org/news/changelog.html",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.openwall.com/lists/oss-security/2010/03/03/5",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securityfocus.com/archive/1/516397/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vmware.com/security/advisories/VMSA-2011-0003.html",
      "source": "secalert@redhat.com"
    },
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      "url": "http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/0839",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/0916",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/0933",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/1216",
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=567711",
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=569774",
      "source": "secalert@redhat.com"
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    {
      "url": "https://kb.bluecoat.com/index?page=content&id=SA50",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html",
      "source": "secalert@redhat.com"
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    {
      "url": "https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000102.html",
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12260",
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    },
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      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6718",
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9856",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://cvs.openssl.org/chngview?cn=19374",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca4b4c/66aa896c3a78b2f7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://marc.info/?l=bugtraq&m=127128920008563&w=2",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://secunia.com/advisories/42724",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:076",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.openssl.org/news/changelog.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2010/03/03/5",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/archive/1/516397/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vmware.com/security/advisories/VMSA-2011-0003.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vupen.com/english/advisories/2010/0916",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vupen.com/english/advisories/2010/0933",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vupen.com/english/advisories/2010/1216",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=567711",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=569774",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://kb.bluecoat.com/index?page=content&id=SA50",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12260",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot."
    },
    {
      "lang": "es",
      "value": "La funcion kssl_keytab_is_available en ssl/kssl.c en OpenSSL before v0.9.8n, cuando Kerberos esta activo pero los ficheros de configuracion de Kerberos no pueden ser abiertos, no comprueba adecuadamente cierto valor de retorno, lo que permite a atacantes remotos producir una denegacion de servicio (desreferencia a puntero nulo y caida de demonio) a traves de la negociacion del cifrado SSL, lo que se demuestra mediante la instalacion chroot de Dovecot o stunnel sin los ficheros de configuracion de Kerberos dentro de chroot."
    }
  ],
  "lastModified": "2026-06-16T23:16:09.870",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D2DC14B4-BFB1-4F37-9A6D-1488C394F500",
              "versionEndIncluding": "0.9.8m"
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            {
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              "vulnerable": true,
              "matchCriteriaId": "8A4E446D-B9D3-45F2-9722-B41FA14A6C31"
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          "operator": "OR"
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  "sourceIdentifier": "secalert@redhat.com"
}