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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Open vSwitch vulnerability (USN-6068-1)

high Nessus Plugin ID 175567

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 22.10 host has packages installed that are affected by a vulnerability as referenced in the USN-6068-1 advisory.

 - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-6068-1

Plugin Details

Severity: High

ID: 175567

File Name: ubuntu_USN-6068-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/13/2023

Updated: 10/16/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2023-1668

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openvswitch-common, p-cpe:/a:canonical:ubuntu_linux:openvswitch-ipsec, p-cpe:/a:canonical:ubuntu_linux:openvswitch-pki, p-cpe:/a:canonical:ubuntu_linux:openvswitch-source, p-cpe:/a:canonical:ubuntu_linux:openvswitch-switch, p-cpe:/a:canonical:ubuntu_linux:openvswitch-switch-dpdk, p-cpe:/a:canonical:ubuntu_linux:openvswitch-test, p-cpe:/a:canonical:ubuntu_linux:openvswitch-testcontroller, p-cpe:/a:canonical:ubuntu_linux:openvswitch-vtep, 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:python-openvswitch, p-cpe:/a:canonical:ubuntu_linux:python3-openvswitch

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/10/2023

Vulnerability Publication Date: 4/10/2023

Reference Information

CVE: CVE-2023-1668

USN: 6068-1