CVE-2021-40085
6.5 MEDIUMAn issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1
Published: 2021-08-31 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 6.5 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected products
| Vendor | Product |
|---|---|
| debian | debian_linux, neutron |
| openstack | debian_linux, neutron |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40085
- [Patch]http://www.openwall.com/lists/oss-security/2021/08/31/2
- [Exploit reference]https://launchpad.net/bugs/1939733
- [Other]https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html
- [Other]https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html
- [Patch]https://security.openstack.org/ossa/OSSA-2021-005.html
- [Other]https://www.debian.org/security/2021/dsa-4983
- [Patch]http://www.openwall.com/lists/oss-security/2021/08/31/2
- [Exploit reference]https://launchpad.net/bugs/1939733
- [Other]https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html
- [Other]https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html
- [Patch]https://security.openstack.org/ossa/OSSA-2021-005.html
- [Other]https://www.debian.org/security/2021/dsa-4983
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