Security advisory

{
  "id": "b73598c207944430dae518ad54c080ce106569b38e4fa135c7ec808d415a291b",
  "url": "https://osv.dev/vulnerability/CVE-2020-35652",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35652",
    "summary": "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.",
    "evidence": "osv:CVE-2020-35652",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-35652",
      "aliases": [
        "CVE-2020-35652"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/asterisk/asterisk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f396dd2dd653c368dcf2887a4852bf814c4ae27e"
                },
                {
                  "introduced": "c6d6dd133c3db3b202f1f0d457780c9a6d841e0f"
                },
                {
                  "fixed": "b240b843312850b724c5a37340d61101a613d8d1"
                },
                {
                  "introduced": "5ffe12b6ef30cd503f85d75745fd8d9c2cfafe47"
                },
                {
                  "fixed": "e032ae62264b9ac041f0bf5282b3fbc9c327d83a"
                },
                {
                  "introduced": "2c1bba3cbec008c8ce35c78a2c79f9f207ea58bc"
                },
                {
                  "fixed": "45f9e40e9caa0c557c3e5bf4efa5f0e3b562e2a0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "13.38.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "14.0"
                      },
                      {
                        "fixed": "16.15.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "17.0"
                      },
                      {
                        "fixed": "17.9.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "18.0"
                      },
                      {
                        "fixed": "18.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "18.1.0-rc1",
            "17.9.0-rc1",
            "16.15.0-rc1",
            "13.38.0-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35652.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.983185148Z",
      "provider": "osv",
      "references": [
        "https://downloads.asterisk.org/pub/security/AST-2020-003.html",
        "https://downloads.asterisk.org/pub/security/AST-2020-004.html",
        "https://issues.asterisk.org/jira/browse/ASTERISK-29219",
        "https://issues.asterisk.org/jira/browse/ASTERISK-29191"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-35652",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434344,
  "published_at": "2021-01-29T08:15:10.52+00:00"
}