Openvswitch don't match packets on nd_target field
Priority LOW 31CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 2 fixed, 6 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-345.
Summary
A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.
Why it matters now
EPSS 0.00416 36th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 2 fixed, 6 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | openvswitch | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 7 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 8 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 9 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 9 | — | — | No fix listed | CNA |
| Red Hat | Fast Datapath for RHEL 9 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 3.11 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenStack Platform 16.1 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenStack Platform 16.2 | — | — | Not affected | CNA |
| Red Hat | Red Hat Virtualization 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Virtualization 4 | — | — | No fix listed | CNA |
| Fedora | Fedora | — | — | No fix listed | CNA |
- openvswitch Vendor— Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 9 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 9 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fast Datapath for RHEL 9 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 3.11 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenStack Platform 16.1 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Virtualization 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Virtualization 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Fedora VendorFedora Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* | before 2023-02-28 | Vulnerable | Openvswitch |
| cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:fast_datapath:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Running on | Red Hat |
- cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* Versions before 2023-02-28 Vulnerable ·Openvswitch
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:fast_datapath:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Red Hat
Remediation
Red Hat 3 advisories
- RHSA-2024:1227 Released 2024-03-07 · Red Hat rating Importantopenvswitch3.1 security update
- Fast Datapath for Red Hat Enterprise Linux 9 openvswitch3.1-3.1.0-88.el9fdp, openvswitch3.1-devel-3.1.0-88.el9fdp, openvswitch3.1-ipsec-3.1.0-88.el9fdp +2
- RHSA-2024:1235 Released 2024-03-07 · Red Hat rating Importantopenvswitch3.1 security update
- Fast Datapath for Red Hat Enterprise Linux 8 network-scripts-openvswitch3.1-3.1.0-96.el8fdp, openvswitch3.1-3.1.0-96.el8fdp, openvswitch3.1-devel-3.1.0-96.el8fdp +3
- RHSA-2024:1234 Released 2024-03-07 · Red Hat rating Importantopenvswitch2.17 security update
- Fast Datapath for Red Hat Enterprise Linux 8 network-scripts-openvswitch2.17-2.17.0-148.el8fdp, openvswitch2.17-2.17.0-148.el8fdp, openvswitch2.17-devel-2.17.0-148.el8fdp +3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Fast Datapath for RHEL 7 | Affected | No fix yet |
| Fast Datapath for RHEL 8 | Affected | No fix planned: Out of support scope |
| Fast Datapath for RHEL 9 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix planned: Out of support scope |
| Red Hat Virtualization 4 | Affected | No fix yet |
| Fast Datapath for Red Hat Enterprise Linux 8 | Fixed | RHSA-2024:1234, RHSA-2024:1235 |
| Fast Datapath for Red Hat Enterprise Linux 9 | Fixed | RHSA-2024:1227 |
Not affected: 2 products
- Red Hat OpenStack Platform 16.1
- Red Hat OpenStack Platform 16.2
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5366
- 2026-10-03 Alias added: GHSA-f89w-2cg8-8h78
References
Patch 1
Other 4
- http://www.openwall.com/lists/oss-security/2024/02/08/4
- https://lists.debian.org/debian-lts-announce/2024/02/msg00004.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/
More Red Hat Enterprise Linux vulnerabilities
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- TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
Sources
- CVE-2023-5366 · CVE Program
- CVE-2023-5366 · NVD
- FIRST EPSS
- GHSA-f89w-2cg8-8h78 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-5366 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences