openstack/neutron · Security
OpenStack Neutron vulnerable to authenticated attackers reconfiguring dnsmasq via crafted extra_dhcp_opts value
- GHSA ID
- GHSA-fh73-gjvg-349c
- CVE ID
- CVE-2021-40085
- Severity
- high
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- CVSS v4
- 7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA: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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-40085 ↗
- https://launchpad.net/bugs/1939733 ↗
- https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html ↗
- https://security.openstack.org/ossa/OSSA-2021-005.html ↗
- https://www.debian.org/security/2021/dsa-4983 ↗
- http://www.openwall.com/lists/oss-security/2021/08/31/2 ↗
- https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html ↗
- https://github.com/openstack/neutron/commit/df891f0593d234e01f27d7c0376d9702e178ecfb ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2021-361.yaml ↗
- https://github.com/advisories/GHSA-fh73-gjvg-349c ↗