CVEvulnerability
CVE-2021-40085
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-08-31
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:P/A:N
Description
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.
Affected configurations
• openstack neutron (< 16.4.1)
• openstack neutron (>= 17.0.0 < 17.2.1)
• openstack neutron (>= 18.0.0 < 18.1.1)
• debian debian linux 9.0
• debian debian linux 10.0
• debian debian linux 11.0
References
- http://www.openwall.com/lists/oss-security/2021/08/31/2 Mailing List, Patch, Third Party Advisory
- https://launchpad.net/bugs/1939733 Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html Mailing List, Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2021-005.html Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4983 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/31/2 Mailing List, Patch, Third Party Advisory
- https://launchpad.net/bugs/1939733 Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html Mailing List, Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2021-005.html Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4983 Third Party Advisory