Bug 2025040 (CVE-2021-37592)

Summary: CVE-2021-37592 suricata: TCP evasion via a client with a crafted TCP/IP stack
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ish, jmlich83, jtfas90, sgrubb
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: suricata 5.0.8, suricata 6.0.4 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-19 18:49:47 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2025041, 2025042    
Bug Blocks:    

Description Pedro Sampaio 2021-11-19 18:36:36 UTC
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.

https://github.com/OISF/suricata/releases
https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942
https://redmine.openinfosecfoundation.org/issues/4569

Comment 1 Pedro Sampaio 2021-11-19 18:36:56 UTC
Created suricata tracking bugs for this issue:

Affects: epel-all [bug 2025042]
Affects: fedora-all [bug 2025041]

Comment 2 Product Security DevOps Team 2021-11-19 18:49:45 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.