Debian Long Term Support / LTS Security Information / 2021 / Security Information -- DLA-2781-1 neutron

Debian Security Advisory

DLA-2781-1 neutron -- LTS security update

Date Reported:

11 Oct 2021

Affected Packages:

neutron

Vulnerable:

Yes

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.

• CVE-2021-40085

  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