Insufficient verification of data authenticity in Open vSwitch - CVE-2023-5366

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Main Vulnerability Database Vulnerabilities #VU83434

Insufficient verification of data authenticity in Open vSwitch - CVE-2023-5366

Published: November 22, 2023 / Updated: February 9, 2024


Vulnerability identifier: #VU83434
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-5366
CWE-ID: CWE-345
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: openvswitch.org
Affected software:
Open vSwitch

Detailed vulnerability description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to missing verification of data authenticity when handling ICMPv6 Neighbor Advertisement packets between virtual machines. A local user can bypass OpenFlow rules and send otherwise restricted packets.


How to mitigate CVE-2023-5366

Install updates from vendor's website.

Sources