{
  "id": "CVE-2011-4110",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2012-01-27T15:55:04.360",
  "lastModified": "2023-02-13T04:32:44.600",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and \"updating a negative key into a fully instantiated key.\""
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n user_update security/keys/user_defined.c en el kernel de Linux v2.6 permite a usuarios locales provocar una denegaci\u00f3n de servicio (desreferencia de puntero a NULL y fallo del kernel) a trav\u00e9s de vectores relacionados con una clave definida por el usuario y la \"actualizaci\u00f3n de una clave negativa en una clave completamente instanciada\"."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.1
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "0FC560CC-F785-42D5-A25B-1BA02E7AC464"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://marc.info/?l=bugtraq&m=139447903326211&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/47754",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/11/21/19",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/11/22/5",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/11/22/6",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/50755",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1324-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1328-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1344-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=751297",
      "source": "secalert@redhat.com",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://lkml.org/lkml/2011/11/15/363",
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit"
      ]
    }
  ]
}