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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-1000211

Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-1000211
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:12 UTC · Revision 1

Source evidence

CVE-2017-1000211

core-osv · Original source

Published 17 Nov 2017, 15:29 UTC

Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.

osv:CVE-2017-1000211
Complete source record
{
  "id": "8b58bfbc4429da7e3a6b1127a882e713048d5f008b957578fc80f61792277270",
  "url": "https://osv.dev/vulnerability/CVE-2017-1000211",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-1000211",
    "summary": "Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.",
    "evidence": "osv:CVE-2017-1000211",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-1000211",
      "aliases": [
        "CVE-2017-1000211"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/thomasdickey/lynx-snapshots",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f3c226747c841f40c7a86c1dd07b478114dfcd6c"
                },
                {
                  "last_affected": "f3c226747c841f40c7a86c1dd07b478114dfcd6c"
                },
                {
                  "fixed": "280a61b300a1614f6037efc0902ff7ecf17146e9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:lynx_project:lynx:2.8.9:dev15:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.8.9-dev15"
                      },
                      {
                        "last_affected": "2.8.9-dev15"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "280a61b300a1614f6037efc0902ff7ecf17146e9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.8.9-dev15",
            "v2-8-9dev_16",
            "v2-8-9dev_15g"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000211.json",
            "vanir_signatures": [
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                "id": "CVE-2017-1000211-0e44be72",
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                },
                "source": "https://github.com/thomasdickey/lynx-snapshots/commit/280a61b300a1614f6037efc0902ff7ecf17146e9",
                "target": {
                  "file": "src/HTML.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
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              {
                "id": "CVE-2017-1000211-a1743f3b",
                "digest": {
                  "length": 2457,
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                "source": "https://github.com/thomasdickey/lynx-snapshots/commit/280a61b300a1614f6037efc0902ff7ecf17146e9",
                "target": {
                  "file": "src/HTML.c",
                  "function": "HTML_put_string"
                },
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              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:19:37Z"
          }
        }
      ],
      "modified": "2026-10-20T13:19:37.997518653Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2017/11/msg00021.html",
        "https://github.com/ThomasDickey/lynx-snapshots/commit/280a61b300a1614f6037efc0902ff7ecf17146e9"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-1000211",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387519,
  "published_at": "2017-11-17T15:29:00.31+00:00"
}