Security advisory

{
  "id": "de77cfef06a305303b02b05cac735e5b07230257205617d56de8598a47027848",
  "url": "https://osv.dev/vulnerability/CVE-2019-20063",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-20063",
    "summary": "hdf/dataobject.c in libmysofa before 0.8 has an uninitialized use of memory, as demonstrated by mysofa2json.",
    "evidence": "osv:CVE-2019-20063",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-20063",
      "aliases": [
        "CVE-2019-20063"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hoene/libmysofa",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e07edb39e9ecc796127cd748ada4a4bac88cb5d2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:symonics:libmysofa:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.7",
            "v0.6",
            "v0.5",
            "v0.4(Windows)",
            "v0.4",
            "v0,.4",
            "v0.2",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20063.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-20063-404f19df",
                "digest": {
                  "length": 4260,
                  "function_hash": "328880872378914765005939255405185543561"
                },
                "source": "https://github.com/hoene/libmysofa/commit/e07edb39e9ecc796127cd748ada4a4bac88cb5d2",
                "target": {
                  "file": "src/hdf/fractalhead.c",
                  "function": "directblockRead"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-20063-b5de98d4",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "327450119867057413196112788322635289809",
                    "9142477717232231720464254396353794803",
                    "306551394601581249222330059303544984997",
                    "212725765374736972277751008736718580393",
                    "147841328434198515238758014161611012765",
                    "78431079500622347637056678094094913883",
                    "324854849121731529451832255446721945828",
                    "174166082281745376657080985686173605776",
                    "71892231947832118433842673422764894367",
                    "66772769027897273435728406033142410531",
                    "229786284638814089070613681383340953847",
                    "89022206491473755382512861302976300312",
                    "214661617457306383570695756895132914755",
                    "50268361982437051317672594679221604193",
                    "37314421827654367695053394627950461639"
                  ]
                },
                "source": "https://github.com/hoene/libmysofa/commit/e07edb39e9ecc796127cd748ada4a4bac88cb5d2",
                "target": {
                  "file": "src/hdf/fractalhead.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:42:12Z"
          }
        }
      ],
      "modified": "2026-10-20T13:42:12.926487117Z",
      "provider": "osv",
      "references": [
        "https://github.com/hoene/libmysofa/compare/v0.7...v0.8",
        "https://github.com/hoene/libmysofa/issues/67"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-20063",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387974,
  "published_at": "2019-12-29T20:15:28.08+00:00"
}