Debian DSA-5387-1 : openvswitch - security update

high Nessus Plugin ID 174273

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5387 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

Upgrade the openvswitch packages.

For the stable distribution (bullseye), this problem has been fixed in version 2.15.0+ds1-2+deb11u4.

Plugin Details

Severity: High

ID: 174273

File Name: debian_DSA-5387.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/14/2023

Updated: 4/25/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, 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: p-cpe:/a:debian:debian_linux:openvswitch-testcontroller, p-cpe:/a:debian:debian_linux:openvswitch-vtep, p-cpe:/a:debian:debian_linux:openvswitch-ipsec, p-cpe:/a:debian:debian_linux:openvswitch-common, p-cpe:/a:debian:debian_linux:openvswitch-pki, p-cpe:/a:debian:debian_linux:openvswitch-switch, p-cpe:/a:debian:debian_linux:openvswitch-dev, p-cpe:/a:debian:debian_linux:python3-openvswitch, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:openvswitch-switch-dpdk, p-cpe:/a:debian:debian_linux:openvswitch-dbg

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/13/2023

Vulnerability Publication Date: 4/10/2023

Reference Information

CVE: CVE-2023-1668

Detections

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