[OSSA 2015-021] Nova network security group changes are not applied to running instances (CVE-2015-7713)

[Tristan Cacqueray <tdecacqu () redhat com>]

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OSSA-2015-021: Nova network security group changes are not applied to running instances
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:Date: October 06, 2015
:CVE: CVE-2015-7713


Affects
~~~~~~~
- Nova: <=2014.2.3, >=2015.1.0, <=2015.1.1


Description
~~~~~~~~~~~
Sreekumar S. and Suntao independently reported a vulnerability in Nova
network. Security group changes silently fail to be applied to already
running instances, potentially resulting in instances not being
protected by the security group. All Nova network setups are affected.


Patches
~~~~~~~
- https://review.openstack.org/222026 (Juno)
- https://review.openstack.org/222023 (Kilo)
- https://review.openstack.org/222022 (Liberty)


Credits
~~~~~~~
- Sreekumar S. (CVE-2015-7713)
- Suntao (CVE-2015-7713)


References
~~~~~~~~~~
- https://bugs.launchpad.net/bugs/1491307
- https://bugs.launchpad.net/bugs/1484738
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7713


Notes
~~~~~
- This fix will be included in future 2014.2.4 (juno) and 2015.1.2 (kilo)
  releases.

--
Tristan Cacqueray
OpenStack Vulnerability Management Team

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