{
  "id": "CVE-2017-16671",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-11-09T00:29:00.473",
  "lastModified": "2018-11-25T11:29:00.957",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento de b\u00fafer se descubri\u00f3 en Asterisk Open Source en versiones 13 anteriores a la 13.18.1, versiones 14 anteriores a la 14.7.1 y versiones 15 antes de la 15.1.1 y en Certified Asterisk 13.13 en versiones anteriores a la 13.13-cert7. No se realizan chequeos de tama\u00f1o cuando se configura el campo user para Party B en un CDR. Por ello, es posible que alguien utilice una cadena arbitraria con una longitud larga y escriba m\u00e1s all\u00e1 del final del b\u00fafer de almacenamiento del campo user. NOTA: esta vulnerabilidad es diferente de CVE-2017-7617, que solo trataba del b\u00fafer Party A."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "13.0.0",
              "versionEndExcluding": "13.18.1",
              "matchCriteriaId": "88EDB1A9-AC31-4A47-A222-0C4E17274A02"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "14.0.0",
              "versionEndExcluding": "14.7.1",
              "matchCriteriaId": "5861B3BC-A35A-4617-A24E-F88D27DBE3F6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "15.0.0",
              "versionEndExcluding": "15.1.1",
              "matchCriteriaId": "651DC4FA-A4EF-40DC-9B54-3ED928A7531A"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "7233B5A2-E1CE-4B7E-99FA-26369B892B25"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*",
              "matchCriteriaId": "F051FE7D-0695-4552-BC1C-836076825606"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc1:*:*:*:*:*:*",
              "matchCriteriaId": "2E9DFD7C-9ED1-4561-8AFF-69D98E8E398D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc2:*:*:*:*:*:*",
              "matchCriteriaId": "CA8BFAC6-17A7-4B80-B436-0FFA4B9EA22A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc3:*:*:*:*:*:*",
              "matchCriteriaId": "954376A0-A03C-47D9-BC5E-14B005DB3940"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc4:*:*:*:*:*:*",
              "matchCriteriaId": "07BB081F-504D-42E3-9CDE-4005572CA0CF"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*",
              "matchCriteriaId": "9F379170-DC3B-41B8-B950-7E0E1E6002AD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*",
              "matchCriteriaId": "338BFA7B-AA84-483F-B298-BC932728E0EF"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert4:*:*:*:*:*:*",
              "matchCriteriaId": "0A4D417F-485E-4CAD-8542-A22BBA2869E3"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert5:*:*:*:*:*:*",
              "matchCriteriaId": "61F70CD2-1727-4955-A81B-8927AEF468ED"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:certified_asterisk:13.13.0:cert6:*:*:*:*:*:*",
              "matchCriteriaId": "A9437455-90FB-4F90-B246-A37E558C9CE5"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://downloads.digium.com/pub/security/AST-2017-010.html",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/101760",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://issues.asterisk.org/jira/browse/ASTERISK-27337",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://security.gentoo.org/glsa/201811-11",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2017/dsa-4076",
      "source": "cve@mitre.org"
    }
  ]
}