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Linux Distros Unpatched Vulnerability : CVE-2023-5366

medium Nessus Plugin ID 226516

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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. (CVE-2023-5366)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2023-5366

https://ubuntu.com/security/CVE-2023-5366

Plugin Details

Severity: Medium

ID: 226516

File Name: unpatched_CVE_2023_5366.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/5/2025

Updated: 8/20/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2023-5366

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openvswitch-ovn-common, p-cpe:/a:redhat:enterprise_linux:openvswitch, p-cpe:/a:canonical:ubuntu_linux:openvswitch, p-cpe:/a:centos:centos:openvswitch, p-cpe:/a:centos:centos:openvswitch-ovn-vtep, p-cpe:/a:centos:centos:python-openvswitch, p-cpe:/a:redhat:enterprise_linux:openvswitch-devel, p-cpe:/a:redhat:enterprise_linux:openvswitch-ovn-host, p-cpe:/a:centos:centos:openvswitch-test, p-cpe:/a:centos:centos:openvswitch-ovn-central, p-cpe:/a:redhat:enterprise_linux:openvswitch-ovn-vtep, p-cpe:/a:centos:centos:openvswitch-ovn-docker, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:openvswitch-ovn-docker, p-cpe:/a:centos:centos:openvswitch-devel, p-cpe:/a:centos:centos:openvswitch-ovn-host, p-cpe:/a:redhat:enterprise_linux:python-openvswitch, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:openvswitch-ovn-central, p-cpe:/a:redhat:enterprise_linux:openvswitch-test, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:openvswitch-ovn-common

Required KB Items: Host/OS/identifier, Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/6/2023

Reference Information

CVE: CVE-2023-5366