Ubuntu 4036-1: OpenStack Neutron vulnerability

    Date25 Jun 2019
    CategoryUbuntu
    2435
    Posted ByLinuxSecurity Advisories
    A system hardening measure could be bypassed.
    ==========================================================================
    Ubuntu Security Notice USN-4036-1
    June 25, 2019
    
    neutron vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 16.04 LTS
    
    Summary:
    
    A system hardening measure could be bypassed.
    
    Software Description:
    - 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
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4036-1
      CVE-2019-9735
    
    Package Information:
      https://launchpad.net/ubuntu/+source/neutron/2:13.0.2-0ubuntu3.4
      https://launchpad.net/ubuntu/+source/neutron/2:8.4.0-0ubuntu7.4
    
    
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