Security advisory

{
  "id": "ec4e2f563eb6842658014d27d38cac184c139398842435ea7a5556453f10e73c",
  "url": "https://osv.dev/vulnerability/CVE-2020-36619",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36619",
    "summary": "A vulnerability was found in multimon-ng. It has been rated as critical. This issue affects the function add_ch of the file demod_flex.c. The manipulation of the argument ch leads to format string. Upgrading to version 1.2.0 is able to address this issue. The name of the patch is e5a51c508ef952e81a6da25b43034dd1ed023c07. It is recommended to upgrade the affected component. The identifier VDB-216269 was assigned to this vulnerability.",
    "evidence": "osv:CVE-2020-36619",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-36619",
      "aliases": [
        "CVE-2020-36619"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eliasoenal/multimon-ng",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5dc5b6942eb6f0cb883035a675d30fdbc59927c8"
                },
                {
                  "fixed": "e5a51c508ef952e81a6da25b43034dd1ed023c07"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:multimon-ng_project:multimon-ng:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e5a51c508ef952e81a6da25b43034dd1ed023c07"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5dc5b6942eb6f0cb883035a675d30fdbc59927c8"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "1.2.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.1.8",
            "1.1.7",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36619.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-36619-8f520c1d",
                "digest": {
                  "length": 642,
                  "function_hash": "226150456320299439841498299087141614598"
                },
                "source": "https://github.com/eliasoenal/multimon-ng/commit/e5a51c508ef952e81a6da25b43034dd1ed023c07",
                "target": {
                  "file": "demod_flex.c",
                  "function": "add_ch"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-36619-e8a98ac0",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "64717089754447686454078122890855002706",
                    "23296947571822137904611538213953066960",
                    "202052360007310815785406061929403601400",
                    "247882084652519686155028832034667660434"
                  ]
                },
                "source": "https://github.com/eliasoenal/multimon-ng/commit/e5a51c508ef952e81a6da25b43034dd1ed023c07",
                "target": {
                  "file": "demod_flex.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:59:39Z"
          }
        }
      ],
      "modified": "2026-10-20T13:59:39.085935851Z",
      "provider": "osv",
      "references": [
        "https://github.com/EliasOenal/multimon-ng/releases/tag/1.2.0",
        "https://vuldb.com/?id.216269",
        "https://github.com/EliasOenal/multimon-ng/commit/e5a51c508ef952e81a6da25b43034dd1ed023c07",
        "https://github.com/EliasOenal/multimon-ng/pull/160"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36619",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388493,
  "published_at": "2022-12-19T14:15:10.243+00:00"
}