Access Control Flaw in Open Virtual Network by Red Hat
CVE-2025-0650

8.1HIGH

Key Information:

Vendor
Red Hat
Status
Fast Datapath For Rhel 8
Fast Datapath For Rhel 9
Red Hat Openshift Container Platform 4
Vendor
CVE Published:
23 January 2025

Summary

A flaw exists in the Open Virtual Network (OVN) where specially crafted UDP packets can bypass egress access control lists (ACLs). This vulnerability is present when a logical switch with DNS records configured and associated egress ACLs is utilized. Attackers could potentially exploit this flaw to gain unauthorized access to virtual machines and containers, leading to security breaches in OVN networks.

References

https://access.redhat.com/security/cve/CVE-2025-0650
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2339537
issue-trackingx_refsource_REDHAT
https://www.openwall.com/lists/oss-security/2025/01/22/5

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.