Vulnerability Monitor

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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.

Published

2021-08-31T18:15:08.837

Last Modified

2024-11-21T06:23:31.170

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openstack	neutron	< 16.4.1	Yes
Application	openstack	neutron	< 17.2.1	Yes
Application	openstack	neutron	< 18.1.1	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

http://www.openwall.com/lists/oss-security/2021/08/31/2 Mailing List, Patch, Third Party Advisory ([email protected])
https://launchpad.net/bugs/1939733 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html Mailing List, Third Party Advisory ([email protected])
https://security.openstack.org/ossa/OSSA-2021-005.html Patch, Vendor Advisory ([email protected])
https://www.debian.org/security/2021/dsa-4983 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/08/31/2 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://launchpad.net/bugs/1939733 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.openstack.org/ossa/OSSA-2021-005.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2021/dsa-4983 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)