RHSA-2025:1089
Vulnerability from csaf_redhat - Published: 2025-02-05 15:15 - Updated: 2025-11-21 19:20Summary
Red Hat Security Advisory: ovn22.03 security update
Notes
Topic
An update for ovn22.03 is now available for Fast Datapath for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add native support for virtual network abstractions, such as virtual L2 and L3 overlays and security groups.
Security Fix(es):
* ovn: egress ACLs may be bypassed via specially crafted UDP packet (CVE-2025-0650)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "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.",
"title": "Vulnerability description"
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{
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"text": "ovn: egress ACLs may be bypassed via specially crafted UDP packet",
"title": "Vulnerability summary"
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{
"category": "other",
"text": "Fixes for OpenShift Container Platform ovn component will be consumed from RHEL Fast Datapath.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-0650"
},
{
"category": "external",
"summary": "RHBZ#2339537",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339537"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-0650",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-0650"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-0650",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0650"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2025/01/22/5",
"url": "https://www.openwall.com/lists/oss-security/2025/01/22/5"
}
],
"release_date": "2024-01-21T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-02-05T15:15:12+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2025:1089"
},
{
"category": "workaround",
"details": "Red Hat Product Security has not identified any mitigations at this time. We recommend updating to a known patched version of OVN.",
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}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "ovn: egress ACLs may be bypassed via specially crafted UDP packet"
}
]
}
Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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