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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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

4.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://security.openstack.org/ossa/OSSA-2021-005.html	Patch Vendor Advisory
https://launchpad.net/bugs/1939733	Exploit Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/31/2	Mailing List Patch Third Party Advisory
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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openstack:neutron::::::::
	cpe:2.3:a:openstack:neutron::::::::
	cpe:2.3:a:openstack:neutron::::::::

Configuration 2 (hide)

OR	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 11:15

Updated : 2022-06-13 12:56

NVD link : CVE-2021-40085

Mitre link : CVE-2021-40085

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

debian

debian_linux

openstack

neutron

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