CVE-2021-40085
Published: 31 August 2021
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.
Notes
| Author | Note |
|---|---|
| mdeslaur |
This issue was fixed in (2:16.4.1-0ubuntu2) in focal-updates and (2:18.1.1-0ubuntu2) in hirsute-updates, and was later released to -security. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
neutron
Launchpad, Ubuntu, Debian |
bionic |
Released
(2:12.1.1-0ubuntu8.1)
|
| focal |
Released
(2:16.4.2-0ubuntu6.2)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| jammy |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| kinetic |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| lunar |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| mantic |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| noble |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(16.4.1, 17.2.1, 18.1.1)
|
|
| xenial |
Needs triage
|
|
|
Patches:
upstream: https://opendev.org/openstack/neutron/commit/110fed07cb83deb3abd85073cb351066713b6384 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |