{
  "id": "CVE-2020-35652",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-01-29T08:15:10.520",
  "lastModified": "2021-02-04T20:27:03.110",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in res_pjsip_diversion.c in Sangoma Asterisk before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0. A crash can occur when a SIP message is received with a History-Info header that contains a tel-uri, or when a SIP 181 response is received that contains a tel-uri in the Diversion header."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en el archivo res_pjsip_diversion.c en Sangoma Asterisk versiones anteriores a 13.38.0, versiones 14.x hasta 16.x versiones anteriores a 16.15.0, versiones 17.x anteriores a 17.9.0 y versiones 18.x anteriores a 18.1.0. Puede ocurrir un bloqueo cuando es recibido un mensaje SIP con un encabezado History-Info que contiene un tel-uri, o cuando es recibida una respuesta SIP 181 que contiene un tel-uri en el encabezado Diversion"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "13.38.0",
              "matchCriteriaId": "DA452364-C114-412B-A2E4-192C1FAC38D6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "14.0",
              "versionEndExcluding": "16.15.0",
              "matchCriteriaId": "221D371E-558E-4381-A405-190B9AA04250"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "17.0",
              "versionEndExcluding": "17.9.0",
              "matchCriteriaId": "9A4C2E56-5EA4-4048-88CE-3882D201028B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "18.0",
              "versionEndExcluding": "18.1.0",
              "matchCriteriaId": "A5E927E6-DBA3-4FD6-BA28-F13C3D837197"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://downloads.asterisk.org/pub/security/AST-2020-003.html",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://downloads.asterisk.org/pub/security/AST-2020-004.html",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://issues.asterisk.org/jira/browse/ASTERISK-29191",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://issues.asterisk.org/jira/browse/ASTERISK-29219",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}