CVE-2025-0650

Ovn: egress acls may be bypassed via specially crafted udp packet

Description

A flaw was found in the Open Virtual Network (OVN). Specially crafted UDP packets may bypass egress access control lists (ACLs) in OVN installations configured with a logical switch with DNS records set on it and if the same switch has any egress ACLs configured. This issue can lead to unauthorized access to virtual machines and containers running on the OVN network.

Remediation

Workaround:

  • Red Hat Product Security has not identified any mitigations at this time. We recommend updating to a known patched version of OVN.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.28%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 8
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Fast Datapath for Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2025:1083 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1084 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1085 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1086 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1087 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1088 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1089 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1090 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1091 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1092 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1093 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1094 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1095 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1096 vendor advisory
https://access.redhat.com/errata/RHSA-2025:1097 vendor advisory
https://access.redhat.com/security/cve/CVE-2025-0650 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2339537 issue tracking
https://www.openwall.com/lists/oss-security/2025/01/22/5
http://www.openwall.com/lists/oss-security/2025/01/22/11

Frequently Asked Questions

What is the severity of CVE-2025-0650?
CVE-2025-0650 has been scored as a high severity vulnerability.
How to fix CVE-2025-0650?
As a workaround for remediating CVE-2025-0650: Red Hat Product Security has not identified any mitigations at this time. We recommend updating to a known patched version of OVN.
Is CVE-2025-0650 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-0650 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-0650?
CVE-2025-0650 affects Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 8, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Fast Datapath for Red Hat Enterprise Linux 9, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4.
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