-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2300
                USN-4036-1: OpenStack Neutron vulnerability
                               26 June 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           OpenStack Neutron
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-9735  

Reference:         ESB-2019.1498
                   ESB-2019.1492
                   ESB-2019.0863

Original Bulletin: 
   https://usn.ubuntu.com/4036-1/

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4036-1: OpenStack Neutron vulnerability
25 June 2019

neutron vulnerability
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 18.10
  o Ubuntu 16.04 LTS

Summary

A system hardening measure could be bypassed.

Software Description

  o 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.

Update instructions

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

Ubuntu 18.10
    python-neutron - 2:13.0.2-0ubuntu3.4
    python3-neutron - 2:13.0.2-0ubuntu3.4
Ubuntu 16.04 LTS
    python-neutron - 2:8.4.0-0ubuntu7.4

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2019-9735

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=2+e7
-----END PGP SIGNATURE-----