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CVE-2021-40085

Published: Aug 31, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSANVD-CWE-noinfo
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
1.8%
Top 25.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

NVD-CWE-noinfo

Affected Products

n/an/a
neutronPyPIOSS Libraries
neutronopenstack
On-premNetwork Device
Cloud & SaaS / cloud-platform
debian linuxdebian
On-premOS
Operating Systems / linux-distro
pypipackage-ecosystemOSS Libraries
openstackoss-projectUSCloud & SaaSaka openstack foundation
debianoss-projectGBOperating Systemsaka debian gnu/linux

Exploitability

Official Patch Available

References

https://launchpad.net/bugs/1939733
launchpad.net
http://www.openwall.com/lists/oss-security/2021/08/31/2
openwall.com
https://security.openstack.org/ossa/OSSA-2021-005.html
security.openstack.org
and 7 more references View all →

Timeline

Published
Aug 31, 2021
Last Updated
Nov 21, 2024

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