CVE-2021-40085

Aliases:GHSA-fh73-gjvg-349cPYSEC-2021-361
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
1.35% LOW
1% probability +0.94%
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
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 1.35%• Percentile: 80%

Affected Systems

  • 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

References (10)