Security advisory

{
  "id": "d7644a9e4a1c915d1d98de234a98102f813cec3698c9969b7c12a1328d1b24c1",
  "url": "https://osv.dev/vulnerability/CVE-2020-36420",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36420",
    "summary": "Polipo through 1.1.1, when NDEBUG is omitted, allows denial of service via a reachable assertion during parsing of a malformed Range header. NOTE: This vulnerability only affects products that are no longer supported by the maintainer",
    "evidence": "osv:CVE-2020-36420",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-36420",
      "aliases": [
        "CVE-2020-36420"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jech/polipo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "f690e763257ba05513b0bf0bd8a99554a0719201"
                },
                {
                  "fixed": "4d42ca1b5849518762d110f34b6ce2e03d6df9ec"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:polipo_project:polipo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4d42ca1b5849518762d110f34b6ce2e03d6df9ec"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "polipo-1.1.1",
            "polipo-1.1.0",
            "polipo-20140107",
            "polipo-20091115",
            "polipo-1.0.4",
            "polipo-20080907",
            "polipo-20080524",
            "polipo-20080106-2",
            "polipo-20080106",
            "polipo-20080103",
            "polipo-1.0.3",
            "polipo-20071002",
            "polipo-20071001",
            "polipo-20070915",
            "polipo-syslog-20070909",
            "polipo-1.0.2",
            "polipo-20070824",
            "polipo-1.0.1",
            "polipo-1.0.0",
            "polipo-0.9.99.2",
            "polipo-0.9.99.1",
            "polipo-20061218",
            "polipo-0.9.99.0",
            "polipo-20061116",
            "polipo-20060920",
            "polipo-20060905",
            "polipo-20060903",
            "polipo-20060823",
            "polipo-20060607",
            "polipo-0.9.5",
            "polipo-0.9.4",
            "polipo-0.9.3",
            "polipo-0.9.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36420.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:21.125387674Z",
      "provider": "osv",
      "references": [
        "https://bugs.gentoo.org/755896",
        "https://github.com/jech/polipo/commit/4d42ca1b5849518762d110f34b6ce2e03d6df9ec",
        "https://www.openwall.com/lists/oss-security/2020/11/18/1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36420",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385137,
  "published_at": "2021-07-15T00:15:07.95+00:00"
}