CVE-2023-5366

Openvswitch don't match packets on nd_target field

Description

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com
Affected: n/a openvswitch
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 7
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 8
Affected: Red Hat Fast Datapath for RHEL 9
Affected: Red Hat Fast Datapath for RHEL 9
Affected: Red Hat Fast Datapath for RHEL 9
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat OpenShift Container Platform 3.11
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenStack Platform 16.1
Affected: Red Hat Red Hat OpenStack Platform 16.2
Affected: Red Hat Red Hat Virtualization 4
Affected: Red Hat Red Hat Virtualization 4
Affected: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2023-5366 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2006347 patch third party advisory issue tracking
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/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/

Frequently Asked Questions

What is the severity of CVE-2023-5366?
CVE-2023-5366 has been scored as a high severity vulnerability.
How to fix CVE-2023-5366?
To fix CVE-2023-5366, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-5366 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5366 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5366?
CVE-2023-5366 affects n/a openvswitch, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 9, Red Hat Fast Datapath for RHEL 9, Red Hat Fast Datapath for RHEL 9, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat OpenShift Container Platform 3.11, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenStack Platform 16.1, Red Hat Red Hat OpenStack Platform 16.2, Red Hat Red Hat Virtualization 4, Red Hat Red Hat Virtualization 4, Fedora Fedora.
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