{
  "id": "CVE-2007-4103",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2007-07-31T10:17:00.000",
  "lastModified": "2018-10-15T21:33:14.243",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released."
    },
    {
      "lang": "es",
      "value": "El controlador de canal IAX2 (chan_iax2) de Asterisk Open 1.2.x anterior a 1.2.23, 1.4.x anterior a 1.4.9, y Asterisk Appliance Developer Kit anterior a 0.6.0, cuando est\u00e1 configurado para permitir llamadas no autenticadas, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (agotamiento de recursos) mediante una inundaci\u00f3n de llamadas que no completan la negociaci\u00f3n de 3 pasos, lo cual provoca que se reserve un canal ast_channel pero no se libere."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.2.20:*:*:*:*:*:*:*",
              "matchCriteriaId": "CD80F0D6-6B5B-41D3-AC41-F1643865088A"
            },
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.2.21:*:*:*:*:*:*:*",
              "matchCriteriaId": "788DEF5E-8A99-463D-89DC-0CC032271554"
            },
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              "matchCriteriaId": "62D670E6-47E5-4B40-9217-F97D5F39C3EE"
            },
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              "criteria": "cpe:2.3:a:digium:asterisk:1.2.22:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6CE7E4E-DA2D-4F03-A226-92965B40AE34"
            },
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.4.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "3542DB91-8487-49D6-AA15-E8FD9D6B99D6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.4.7:*:*:*:*:*:*:*",
              "matchCriteriaId": "661D710E-79F0-4E98-B35B-ED0549D35C24"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.4.7.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "68291ADE-F9D1-427B-B150-FDA7F2F4788B"
            },
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:1.4.8:*:*:*:*:*:*:*",
              "matchCriteriaId": "7F80CBCB-F58D-4BE7-8E78-67E04C900D01"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk_appliance_developer_kit:0.5.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "45D880CB-7990-45D2-9AC1-FE840AD92889"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisknow_pre-release:beta6:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4BBEBF2-F8AD-447F-B10D-D9D7AFB48D9B"
            }
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      ]
    }
  ],
  "references": [
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=185713",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://ftp.digium.com/pub/asa/ASA-2007-018.pdf",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200802-11.xml",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/2960",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/475069/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/24950",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1018472",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2701",
      "source": "cve@mitre.org"
    }
  ]
}