Bug 2337553 (CVE-2025-23019)

Summary: CVE-2025-23019 networkmanager: 6in4 protocols excessive trust
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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An insecure configuration flaw was found in the IPv4-in-IPv6 and IPv6-in-IPv6 protocols (RFC4213). When configured to not require authentication or filtering, this issue could allow a remote unauthenticated attacker to spoof packets or bypass access controls.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2025-01-14   

Description OSIDB Bzimport 2025-01-14 01:08:37 UTC
The IPv6-in-IPv4 protocol (RFC4213) does not require authentication of incoming packets allowing an attacker to spoof and route traffic via an exposed network interface that can lead to spoofing, access control bypass, and other unexpected network behaviors.