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Status published
High
CVE-2023-3966
Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet
Vulnerability Description
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was discovered by Haresh Khandelwal (Red Hat) and Timothy Redaelli (Red Hat).
References
- https://access.redhat.com/security/cve/CVE-2023-3966
- https://bugzilla.redhat.com/show_bug.cgi?id=2178363
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/
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Affected Vendor
Affected Software
openvswitch, Fast Datapath for RHEL 7, Fast Datapath for RHEL 8, Fast Datapath for RHEL 9, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 3.11, OpenStack RDO, Fedora
Vulnerable Versions:
3.1.0
Timeline
Official Publish:
February 22nd, 2024
Last Modified:
February 13th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H