Security advisory

{
  "id": "aae8b33fc39d52cf54e74e56d478b5800a004318a89e438498880887d7e55c0d",
  "url": "https://osv.dev/vulnerability/CVE-2016-7143",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-7143",
    "summary": "The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.",
    "evidence": "osv:CVE-2016-7143",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-7143",
      "aliases": [
        "CVE-2016-7143"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/charybdis-ircd/charybdis",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "96129f7d4dff82ba4daa70a0de1ae6c44213a74b"
                },
                {
                  "fixed": "818a3fda944b26d4814132cee14cfda4ea4aa824"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:charybdis_project:charybdis:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "818a3fda944b26d4814132cee14cfda4ea4aa824"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "charybdis-3.5.2",
            "charybdis-3.5.1",
            "charybdis-3.5.0",
            "charybdis-3.5.0-rc1",
            "charybdis-3.5.0-test1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7143.json",
            "vanir_signatures": [
              {
                "id": "CVE-2016-7143-2b66f471",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "307977163491788888553282772178121197387",
                    "173380711908594219357427529785413226173",
                    "298527943946820592230202928672794915803"
                  ]
                },
                "source": "https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824",
                "target": {
                  "file": "modules/m_sasl.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2016-7143-f0f3bcd6",
                "digest": {
                  "length": 1835,
                  "function_hash": "255452577363413129625900170026446147051"
                },
                "source": "https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824",
                "target": {
                  "file": "modules/m_sasl.c",
                  "function": "m_authenticate"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:23:27Z"
          }
        }
      ],
      "modified": "2026-10-20T13:23:27.043303243Z",
      "provider": "osv",
      "references": [
        "https://github.com/charybdis-ircd/charybdis/blob/charybdis-3.5.3/NEWS.md",
        "https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-7143",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387608,
  "published_at": "2016-09-21T14:25:26.177+00:00"
}