7.5High

CVE-2023-3966Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet

openvswitch; Red Hat Fast Datapath for RHEL 7; Red Hat Fast Datapath for RHEL 8; Red Hat Fast Datapath for RHEL 9 Published: 2024-02-22 15:15 (2 years ago)

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.

Weakness (CWE): CWE-248

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
enterprise linux	7	—
enterprise linux	8	—
enterprise linux	9	—
Fedora	Fedora	all versions
RDO	OpenStack RDO	all versions
Red Hat	Fast Datapath for RHEL 7	all versions
Red Hat	Fast Datapath for RHEL 8	all versions
Red Hat	Fast Datapath for RHEL 9	all versions
Red Hat	Red Hat Enterprise Linux 7	all versions
Red Hat	Red Hat OpenShift Container Platform 3.11	—
—	openvswitch	fixed 3.1.0

References and patches

CVSS score

7.5High

Source: redhat · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (chance of exploitation in 30 days)

1.25%

higher than 70% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: yes
Technical impact: partial

Timeline

ID reserved2023-07-26
Published2024-02-22 15:15
Reached IP-DB2026-10-24 23:53
Last updated2025-02-13 20:03

Assigned by (CNA): redhat

View at source: CVE.org · NVD

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