Detections
Analytics

CVE-2021-40085

high

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.

References

https://www.debian.org/security/2021/dsa-4983

https://security.openstack.org/ossa/OSSA-2021-005.html

https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html

https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html

https://launchpad.net/bugs/1939733

http://www.openwall.com/lists/oss-security/2021/08/31/2

Details

Source: Mitre, NVD

Published: 2021-08-31

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 7.1

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High