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CVE-2023-3966

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

Published: Feb 22, 2024Updated: May 16, 2025 Sources: CVE List NVD BDUCWE-248
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.0%
Top 40.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-248

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Fast DatapathRed Hat Inc.
On-prem
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 12 more affected products View all →

Exploitability

Official Patch Available

References

https://github.com/openvswitch/ovs/commit/a468645c6d33
github.com
https://access.redhat.com/security/cve/CVE-2023-3966
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2178363
bugzilla.redhat.com
and 15 more references View all →

Timeline

Published
Feb 22, 2024
Last Updated
May 16, 2025

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