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Vulnerability · Published Jan 23, 2025 · Assigned by redhat

CVE-2025-0650Ovn: egress acls may be bypassed via specially crafted udp packet

High 8.1

In plain English

A high-severity improper access control in ovn. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12ovnno fix listedDEBIAN-CVE-2025-0650
Debian:13ovn25.03.0~git20250216.7c69af7-1DEBIAN-CVE-2025-0650
Ubuntu:22.04:LTSovn22.03.3-0ubuntu0.22.04.5USN-7396-1
Ubuntu:22.04:LTSovn22.03.3-0ubuntu0.22.04.5UBUNTU-CVE-2025-0650
Ubuntu:24.04:LTSovn24.03.2-0ubuntu0.24.04.2USN-7396-1
Ubuntu:24.04:LTSovn24.03.2-0ubuntu0.24.04.2UBUNTU-CVE-2025-0650

Affected products (as reported)

VendorProductVersions
ovn see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 8 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Fast Datapath for Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References