USN-4036-1: OpenStack Neutron vulnerability

25 June 2019

A system hardening measure could be bypassed.

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Releases

Packages

  • neutron - OpenStack Virtual Network Service

Details

Erik Olof Gunnar Andersson discovered that OpenStack Neutron incorrectly
handled certain security group rules in the iptables firewall module. An
authenticated attacker could possibly use this issue to block further
application of security group rules for other instances.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

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Further reading