{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC7739",
  "document": {
    "abstract": "IPv6 specifies the Fragment Header, which is employed for the fragmentation and reassembly mechanisms. The Fragment Header contains an \"Identification\" field that, together with the IPv6 Source Address and the IPv6 Destination Address of a packet, identifies fragments that correspond to the same original datagram, such that they can be reassembled together by the receiving host. The only requirement for setting the Identification field is that the corresponding value must be different than that employed for any other fragmented datagram sent recently with the same Source Address and Destination Address. Some implementations use a simple global counter for setting the Identification field, thus leading to predictable Identification values. This document analyzes the security implications of predictable Identification values, and provides implementation guidance for setting the Identification field of the Fragment Header, such that the aforementioned security implications are mitigated.",
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      "note": "Parsed from RFC index XML abstract",
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "authors": [
      {
        "name": "Fernando Gont"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
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    "docId": "RFC7739",
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      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
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    "docLabel": "IETF RFC 7739",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docNumber": "7739",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docTitle": "Security Implications of Predictable Fragment Identification Values",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "doi": "10.17487/RFC7739",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "href": "https://doi.org/10.17487/RFC7739",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "keywords": [
      "Vulnerability",
      "DoS",
      "Protocol Identifiers"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "pages": "20",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publicationDate": "2016-02-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "references": {
      "bibliographic": [
        "RFC4963",
        "RFC5927",
        "RFC6274",
        "IETF.draft-ietf-6man-deprecate-atomfrag-generation-05",
        "10.1145-637201.637243",
        "orphan/RFC7739/h:b6a13a78",
        "orphan/RFC7739/h:0c4be870",
        "orphan/RFC7739/h:d69bd9d1",
        "orphan/RFC7739/h:07971a8a",
        "orphan/RFC7739/h:40aedcf9",
        "orphan/RFC7739/h:5124a10b",
        "orphan/RFC7739/h:67a24bd2",
        "orphan/RFC7739/h:76bb80e5"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=24 proseBlocks=36 skippedAnchorBlocks=26",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "normative": [
        "RFC1981",
        "RFC2119",
        "RFC2460",
        "RFC4086",
        "RFC4861",
        "RFC5722",
        "RFC6052",
        "RFC6056",
        "RFC6145",
        "RFC6946"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc7739/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
      "updated": "2026-10-20T17:31:29.153Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
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      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7739/",
        "updated": "2026-10-20T17:31:29.153Z",
        "version": "extractDocs.js@commit:8277ba975118"
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}