Debian: DSA-4409-1 Moderate: Neutron Denial Of Service Exposure

Erik Olof Gunnar Andersson discovered that incorrect validation of port
settings in the iptables security group driver of Neutron, the OpenStack
virtual network service, could result in denial of service in a multi
tenant setup.

For the stable distribution (stretch), this problem has been fixed in
version 2:9.1.1-3+deb9u1.

We recommend that you upgrade your neutron packages.

For the detailed security status of neutron please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/neutron

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/