High severityNVD Advisory· Published Aug 31, 2021· Updated Aug 4, 2024
CVE-2021-40085
CVE-2021-40085
Description
An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
neutronPyPI | < 16.4.1 | 16.4.1 |
neutronPyPI | >= 17.0.0, < 17.2.1 | 17.2.1 |
neutronPyPI | >= 18.0.0, < 18.1.1 | 18.1.1 |
Affected products
53- OpenStack/Neutrondescription
- ghsa-coords52 versionspkg:pypi/neutronpkg:rpm/suse/ardana-barbican&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/grafana&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/grafana&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-barbican&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-barbican&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-cinder&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-cinder&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-heat-gbp&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-heat-gbp&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-horizon-plugin-gbp-ui&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-horizon-plugin-gbp-ui&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-ironic&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-ironic&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-keystone&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-keystone&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-neutron&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/openstack-neutron&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openstack-neutron&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-neutron&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openstack-neutron&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openstack-neutron-doc&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/openstack-neutron-doc&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openstack-neutron-doc&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openstack-neutron-gbp&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openstack-neutron-gbp&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/python-lxml&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/python-lxml&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/python-XStatic-jquery-ui&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/python-XStatic-jquery-ui&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/release-notes-suse-openstack-cloud&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/release-notes-suse-openstack-cloud&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/rubygem-sinatra&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/venv-openstack-barbican&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-cinder&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-designate&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-glance&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-heat&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-horizon&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-ironic&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-keystone&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-magnum&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-manila&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-monasca-ceilometer&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-monasca&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-neutron&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-nova&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-octavia&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-sahara&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/venv-openstack-swift&distro=SUSE%20OpenStack%20Cloud%209
< 16.4.1+ 51 more
- (no CPE)range: < 16.4.1
- (no CPE)range: < 9.0+git.1644879908.8a641c1-3.13.1
- (no CPE)range: < 6.7.4-3.26.1
- (no CPE)range: < 6.7.4-3.26.1
- (no CPE)range: < 7.0.1~dev24-3.14.1
- (no CPE)range: < 7.0.1~dev24-3.14.1
- (no CPE)range: < 13.0.10~dev24-3.34.2
- (no CPE)range: < 13.0.10~dev24-3.34.2
- (no CPE)range: < 14.0.1~dev4-3.9.1
- (no CPE)range: < 14.0.1~dev4-3.9.1
- (no CPE)range: < 14.0.1~dev3-3.9.1
- (no CPE)range: < 14.0.1~dev3-3.9.1
- (no CPE)range: < 11.1.5~dev18-3.28.2
- (no CPE)range: < 11.1.5~dev18-3.28.2
- (no CPE)range: < 14.2.1~dev9-3.28.2
- (no CPE)range: < 14.2.1~dev9-3.28.2
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 13.0.8~dev206-3.40.1
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 13.0.8~dev206-3.40.1
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 11.0.9~dev69-3.43.1
- (no CPE)range: < 14.0.1~dev33-3.31.1
- (no CPE)range: < 14.0.1~dev33-3.31.1
- (no CPE)range: < 4.2.4-3.3.1
- (no CPE)range: < 4.2.4-3.3.1
- (no CPE)range: < 5.2.0-3.17.1
- (no CPE)range: < 5.2.0-3.17.1
- (no CPE)range: < 1.13.0.1-4.3.1
- (no CPE)range: < 1.13.0.1-4.3.1
- (no CPE)range: < 9.20220413-3.30.1
- (no CPE)range: < 9.20220413-3.30.1
- (no CPE)range: < 1.4.6-4.3.1
- (no CPE)range: < 7.0.1~dev24-3.35.2
- (no CPE)range: < 13.0.10~dev24-3.38.1
- (no CPE)range: < 7.0.2~dev2-3.35.1
- (no CPE)range: < 17.0.1~dev30-3.33.1
- (no CPE)range: < 11.0.4~dev4-3.35.1
- (no CPE)range: < 14.1.1~dev11-4.39.1
- (no CPE)range: < 11.1.5~dev18-4.33.1
- (no CPE)range: < 14.2.1~dev9-3.36.1
- (no CPE)range: < 7.2.1~dev1-4.35.1
- (no CPE)range: < 7.4.2~dev60-3.41.1
- (no CPE)range: < 1.8.2~dev3-3.35.1
- (no CPE)range: < 2.7.1~dev10-3.37.1
- (no CPE)range: < 13.0.8~dev206-6.39.1
- (no CPE)range: < 18.3.1~dev91-3.39.1
- (no CPE)range: < 3.2.3~dev7-4.35.1
- (no CPE)range: < 9.0.2~dev15-3.35.1
- (no CPE)range: < 2.19.2~dev48-2.30.1
Patches
Vulnerability mechanics
References
10- github.com/advisories/GHSA-fh73-gjvg-349cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-40085ghsaADVISORY
- www.debian.org/security/2021/dsa-4983ghsavendor-advisoryx_refsource_DEBIANWEB
- www.openwall.com/lists/oss-security/2021/08/31/2ghsamailing-listx_refsource_MLISTWEB
- github.com/openstack/neutron/commit/df891f0593d234e01f27d7c0376d9702e178ecfbghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2021-361.yamlghsaWEB
- launchpad.net/bugs/1939733ghsax_refsource_MISCWEB
- lists.debian.org/debian-lts-announce/2021/10/msg00005.htmlghsamailing-listx_refsource_MLISTWEB
- lists.debian.org/debian-lts-announce/2022/05/msg00038.htmlghsamailing-listx_refsource_MLISTWEB
- security.openstack.org/ossa/OSSA-2021-005.htmlghsax_refsource_MISCWEB
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