Vulnerability Description
Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | < 5.0.8 |
Related Weaknesses (CWE)
References
- https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942Release NotesVendor Advisory
- https://github.com/OISF/suricata/releasesRelease NotesThird Party Advisory
- https://redmine.openinfosecfoundation.org/issues/4569Permissions RequiredThird Party Advisory
- https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942Release NotesVendor Advisory
- https://github.com/OISF/suricata/releasesRelease NotesThird Party Advisory
- https://redmine.openinfosecfoundation.org/issues/4569Permissions RequiredThird Party Advisory
FAQ
What is CVE-2021-37592?
CVE-2021-37592 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.
How severe is CVE-2021-37592?
CVE-2021-37592 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-37592?
Check the references section above for vendor advisories and patch information. Affected products include: Oisf Suricata.