CVE-2021-40085
HIGH 7.1EPSS 1.8%
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 v4.0 GitHub
- 7.1 HIGH
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 - CVSS v3.1 NVD
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS v2.0 NVD
- 4.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:N - EPSS
- 1.83% chance of exploitation in the next 30 days, 79th percentile
- Published
- 2021-08-31
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
Security advisories
- https://security.openstack.org/ossa/OSSA-2021-005.html
- http://www.openwall.com/lists/oss-security/2021/08/31/2
- https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html
- https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html
- https://www.debian.org/security/2021/dsa-4983
- advisories/GHSA-fh73-gjvg-349c