CVE-2021-40085

Severity

65%

Complexity

27%

Confidentiality

60%

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 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N).

Overview

First reported 3 years ago

2021-08-31 18:15:00

Last updated 3 years ago

2021-11-30 21:16:00

Affected Software

Debian Linux 9.0

9.0

References

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

https://launchpad.net/bugs/1939733

[oss-security] 20210831 [OSSA-2021-005] Neutron: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)

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

Patch, Vendor Advisory

https://launchpad.net/bugs/1939733

Exploit, Third Party Advisory

[oss-security] 20210831 [OSSA-2021-005] Neutron: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)

Mailing List, Patch, Third Party Advisory

[debian-lts-announce] 20211011 [SECURITY] [DLA 2781-1] neutron security update

DSA-4983

https://launchpad.net/bugs/1939733

Exploit, Issue Tracking, Third Party Advisory

[debian-lts-announce] 20211011 [SECURITY] [DLA 2781-1] neutron security update

Mailing List, Third Party Advisory

DSA-4983

Third Party Advisory

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