CVE Vulnerability

CVE-2021-40085

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://security.openstack.org/ossa/OSSA-2021-005.html Patch Vendor Advisory
https://launchpad.net/bugs/1939733 Exploit Issue Tracking
http://www.openwall.com/lists/oss-security/2021/08/31/2 Mailing List Patch
https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4983 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Information

Published : 2021-08-31 06:15

Updated : 2022-06-13 07:56

NVD link : CVE-2021-40085

Mitre link : CVE-2021-40085

Products Affected
No products.
CWE
NVD-CWE-noinfo