Security advisory

{
  "id": "5da88fd256a16305adfd0838c1c90372a5e4f36067587a80186c5d9619a42df2",
  "url": "https://osv.dev/vulnerability/CVE-2020-14149",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-14149",
    "summary": "In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command.",
    "evidence": "osv:CVE-2020-14149",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-14149",
      "aliases": [
        "CVE-2020-14149"
      ],
      "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/troglobit/uftpd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8fe639180e087ede80c091876bae0d8ac714a449"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:troglobit:uftpd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8fe639180e087ede80c091876bae0d8ac714a449"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.12"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.11",
            "v2.10",
            "v2.9",
            "v2.8",
            "v2.7",
            "v2.6",
            "v2.5",
            "v1.8",
            "v1.7",
            "v1.6",
            "v1.5",
            "v1.4",
            "v1.3",
            "v1.2",
            "v1.1",
            "v1.0",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14149.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:49.661095455Z",
      "provider": "osv",
      "references": [
        "https://github.com/troglobit/uftpd/releases/tag/v2.12",
        "https://bugs.gentoo.org/726308",
        "https://github.com/troglobit/uftpd/issues/30"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-14149",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383014,
  "published_at": "2020-06-15T18:15:15.147+00:00"
}