Debian Security Advisory
DLA-2781-1 neutron -- LTS security update
- Date Reported:
- 11 Oct 2021
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2021-40085.
- More information:
It was discovered that there was an issue where authenticated attackers could have reconfigured dnsmasq via a crafted extra_dhcp_opts value within OpenStack's Neutron virtual network service.
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.
For Debian 9
Stretch, these problems have been fixed in version 2:9.1.1-3+deb9u2.
We recommend that you upgrade your neutron packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS