Security advisory

{
  "id": "2fad1765f70d0e629e831ddb3f3409ebe903fdf2263f022f8043f3d4ff02c468",
  "url": "https://osv.dev/vulnerability/CVE-2019-17263",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-17263",
    "summary": "In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c has a heap-based buffer over-read because rejection of an unsupported size only considers values less than 6, even though values of 6 and 7 are also unsupported. NOTE: the vendor has disputed this as described in the GitHub issue",
    "evidence": "osv:CVE-2019-17263",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2019-17263",
      "aliases": [
        "CVE-2019-17263"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libyal/libfwsi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "20191006"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libfwsi_project:libfwsi:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "20191006"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17263.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:26.281430446Z",
      "provider": "osv",
      "references": [
        "https://github.com/libyal/libfwsi/compare/20181227...20191006",
        "https://github.com/libyal/libfwsi/issues/13"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-17263",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431581,
  "published_at": "2019-10-06T22:15:10.227+00:00"
}