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Debian DSA-4983-1 : neutron - security update
critical Nessus Plugin ID 153993
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Synopsis
The remote Debian host is missing one or more security-related updates.Description
The remote Debian 10 / 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-4983 advisory.Pavel Toporkov discovered a vulnerability in Neutron, the OpenStack virtual network service, which allowed a reconfiguration of dnsmasq via crafted dhcp_extra_opts parameters. For the oldstable distribution (buster), this problem has been fixed in version 2:13.0.7+git.2021.09.27.bace3d1890-0+deb10u1. This update also fixes CVE-2021-20267. For the stable distribution (bullseye), this problem has been fixed in version 2:17.2.1-0+deb11u1. This update also fixes CVE-2021-38598. We recommend that you upgrade your neutron packages. For the detailed security status of neutron please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/neutron
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade the neutron packages.For the stable distribution (bullseye), this problem has been fixed in version 2
See Also
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993398
https://security-tracker.debian.org/tracker/source-package/neutron
https://www.debian.org/security/2021/dsa-4983
https://security-tracker.debian.org/tracker/CVE-2021-20267
https://security-tracker.debian.org/tracker/CVE-2021-38598
https://security-tracker.debian.org/tracker/CVE-2021-40085
Plugin Details
Severity: Critical
ID: 153993
File Name: debian_DSA-4983.nasl
Version: 1.4
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 10/11/2021
Updated: 1/24/2025
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.5
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2021-38598
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:neutron-common, p-cpe:/a:debian:debian_linux:neutron-server, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:neutron-dhcp-agent, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:neutron-ovn-metadata-agent, p-cpe:/a:debian:debian_linux:neutron-doc, p-cpe:/a:debian:debian_linux:neutron-metering-agent, p-cpe:/a:debian:debian_linux:neutron-macvtap-agent, p-cpe:/a:debian:debian_linux:neutron-api, p-cpe:/a:debian:debian_linux:neutron-openvswitch-agent, p-cpe:/a:debian:debian_linux:neutron-rpc-server, p-cpe:/a:debian:debian_linux:neutron-l3-agent, p-cpe:/a:debian:debian_linux:neutron-linuxbridge-agent, p-cpe:/a:debian:debian_linux:python3-neutron, p-cpe:/a:debian:debian_linux:neutron-plugin-nec-agent, p-cpe:/a:debian:debian_linux:neutron-metadata-agent, p-cpe:/a:debian:debian_linux:neutron-sriov-agent
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/10/2021
Vulnerability Publication Date: 5/28/2021