Insufficient Verification of Data Authenticity Affecting openvswitch package, versions <3.3.0~git20240118.e802fe7-3ubuntu1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-UBUNTU2510-OPENVSWITCH-15739852
  • published21 Mar 2026
  • disclosed6 Oct 2023

Introduced: 6 Oct 2023

CVE-2023-5366  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade Ubuntu:25.10 openvswitch to version 3.3.0~git20240118.e802fe7-3ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openvswitch package and not the openvswitch package as distributed by Ubuntu. See How to fix? for Ubuntu:25.10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1