High
Security advisory
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
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"
}