Ubuntu 20.04 LTS / 22.04 LTS / 23.10 : OVN vulnerability (USN-6691-1)

medium Nessus Plugin ID 191927


The remote Ubuntu host is missing a security update.


The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by a vulnerability as referenced in the USN-6691-1 advisory.

- A flaw was found in the Open Virtual Network (OVN). In OVN clusters where BFD is used between hypervisors for high availability, an attacker can inject specially crafted BFD packets from inside unprivileged workloads, including virtual machines or containers, that can trigger a denial of service. (CVE-2024-2182)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also


Plugin Details

Severity: Medium

ID: 191927

File Name: ubuntu_USN-6691-1.nasl

Version: 1.0

Type: local

Agent: unix

Published: 3/12/2024

Updated: 3/12/2024

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

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2024-2182


Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:23.10, p-cpe:/a:canonical:ubuntu_linux:ovn-central, p-cpe:/a:canonical:ubuntu_linux:ovn-common, p-cpe:/a:canonical:ubuntu_linux:ovn-controller-vtep, p-cpe:/a:canonical:ubuntu_linux:ovn-host, p-cpe:/a:canonical:ubuntu_linux:ovn-ic, p-cpe:/a:canonical:ubuntu_linux:ovn-ic-db

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/12/2024

Vulnerability Publication Date: 3/12/2024

Reference Information

CVE: CVE-2024-2182

USN: 6691-1