CVE-2021-40085

Aliases:GHSA-fh73-gjvg-349cPYSEC-2021-361RHSA-2021:3481RHSA-2021:3488RHSA-2021:3502RHSA-2021:3503DEBIAN-CVE-2021-40085
Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 31 Aug 2021, 17:32
Last modified:04 Aug 2024, 02:27

Vulnerability Summary

Overall Risk (default)
medium
36/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
1.83% LOW
2% probability +1.42%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

31 Aug 2021, 17:32
Published
Vulnerability first disclosed
04 Aug 2024, 02:27
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•HIGH•Score: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  • v3.1•HIGH•Score: 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 1.83%• Percentile: 78%

Affected Systems

  • debian•neutron

    < 2:17.2.1-0+deb11u1 | < 2:18.1.0-3 | < 2:18.1.0-3 | < 2:18.1.0-3

  • debian•debian_linux

    9.0 | 10.0 | 11.0

  • openstack•neutron

    < 16.4.1 | ≥ 17.0.0, < 17.2.1 | ≥ 18.0.0, < 18.1.1

  • PyPI•neutron

    < 16.4.1 | ≥ 17.0.0, < 17.2.1 | ≥ 18.0.0, < 18.1.1

  • redhat•openstack-neutron

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-common

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-linuxbridge

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-macvtap-agent

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-metering-agent

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-ml2

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-openvswitch

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-rpc-server

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•openstack-neutron-sriov-nic-agent

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3 | < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•python-neutron

    < 1:9.4.1-56.el7ost | < 1:12.1.1-42.1.el7ost

  • redhat•python-neutron-tests

    < 1:9.4.1-56.el7ost

  • redhat•python3-neutron

    < 1:15.2.1-1.20210409073447.el8ost | < 1:15.3.5-2.20210608154813.el8ost.3

References (29)