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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-14568

Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-14568
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 09:46 UTC · Revision 1

Source evidence

CVE-2018-14568

core-osv · Original source

Published 23 Jul 2018, 20:29 UTC

Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).

osv:CVE-2018-14568
Complete source record
{
  "id": "18e514be8fca390786e695df1809d56bee961e46c4b32883889876ce6a57b842",
  "url": "https://osv.dev/vulnerability/CVE-2018-14568",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-14568",
    "summary": "Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).",
    "evidence": "osv:CVE-2018-14568",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-14568",
      "aliases": [
        "CVE-2018-14568"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oisf/suricata",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "279d32843926dbb7688d9a34128d3162e9ef30a0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.0.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "suricata-4.0.4",
            "suricata-4.0.3",
            "suricata-4.0.2",
            "suricata-4.0.1",
            "suricata-4.0.0",
            "suricata-4.0.0-rc2",
            "suricata-4.0.0-rc1",
            "suricata-4.0.0-beta1",
            "suricata-3.2.1",
            "suricata-3.2",
            "suricata-3.2RC1",
            "suricata-3.2beta1",
            "suricata-3.1.2",
            "suricata-3.1.1",
            "suricata-3.1",
            "suricata-3.0.1",
            "suricata-3.1RC1",
            "suricata-3.0.1RC1",
            "suricata-3.0",
            "suricata-3.0RC3",
            "suricata-3.0RC2",
            "suricata-3.0RC1",
            "suricata-2.1beta4",
            "suricata-2.1beta3",
            "suricata-2.1beta2",
            "suricata-2.1beta1",
            "suricata-2.0.2",
            "suricata-2.0.1",
            "suricata-2.0.1rc1",
            "suricata-2.0",
            "suricata-2.0rc3",
            "suricata-2.0rc2",
            "suricata-2.0rc1",
            "suricata-2.0beta2",
            "suricata-2.0beta1",
            "suricata-1.4",
            "suricata-1.4rc1",
            "suricata-1.4beta3",
            "suricata-1.4beta2",
            "suricata-1.4beta1",
            "suricata-1.3.1",
            "suricata-1.3",
            "suricata-1.3rc1",
            "suricata-1.3beta2",
            "suricata-1.3beta1",
            "suricata-1.2.1",
            "suricata-1.2",
            "suricata-1.2rc1",
            "suricata-1.2beta1",
            "suricata-1.1",
            "suricata-1.1rc1",
            "suricata-1.1beta3",
            "suricata-1.1beta2",
            "suricata-1.1beta1",
            "suricata-1.0.2",
            "suricata-1.0.1",
            "suricata-1.0.0",
            "suricata-0.8.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14568.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:57.842937532Z",
      "provider": "osv",
      "references": [
        "https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/",
        "https://github.com/OISF/suricata/pull/3428/commits/843d0b7a10bb45627f94764a6c5d468a24143345",
        "https://github.com/kirillwow/ids_bypass",
        "https://redmine.openinfosecfoundation.org/issues/2501"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-14568",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379857,
  "published_at": "2018-07-23T20:29:00.333+00:00"
}