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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-15472

In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short.

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2020-15472
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 12:34 UTC · Revision 1

Source evidence

CVE-2020-15472

core-osv · Original source

Published 1 Jul 2020, 11:15 UTC

In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short.

osv:CVE-2020-15472
Complete source record
{
  "id": "8671513c5b119068034b0ee3b8a7957fd0e7324557bdf20b531e943bf4a18a30",
  "url": "https://osv.dev/vulnerability/CVE-2020-15472",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15472",
    "summary": "In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short.",
    "evidence": "osv:CVE-2020-15472",
    "products": [],
    "severity": "critical",
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      "aliases": [
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          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
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                    "range": [
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                        "fixed": "b7e666e465f138ae48ab81976726e67deed12701"
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          ],
          "versions": [
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            "1.8",
            "1.7",
            "1.6"
          ],
          "database_specific": {
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      "modified": "2026-10-20T13:52:29.485581268Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2022/08/msg00016.html",
        "https://github.com/ntop/nDPI/commit/b7e666e465f138ae48ab81976726e67deed12701"
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      "provider_metadata": {
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    "related_cves": [
      {
        "value": "CVE-2020-15472",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388322,
  "published_at": "2020-07-01T11:15:11.117+00:00"
}