[Secure-testing-team] Bug#788996: CVE-2015-1850: [OSSA 2015-011] Cinder host file disclosure through qcow2 backing file

[Thomas Goirand]

Source: cinder
Severity: grave
Tags: security patch

=====================================================================
OSSA-2015-011: Cinder host file disclosure through qcow2 backing file
=====================================================================

:Date: June 16, 2015
:CVE: CVE-2015-1850


Affects
~~~~~~~
- Cinder: versions through 2014.1.4,
          and 2014.2 versions through 2014.2.3,
          and version 2015.1.0


Description
~~~~~~~~~~~
Bastian Blank from credativ reported a vulnerability in Cinder. By
overwriting an image with a malicious qcow2 header, an authenticated
user may mislead Cinder upload-to-image action, resulting in
disclosure of any file from the Cinder server. All Cinder setups are
affected.


Patches
~~~~~~~
- https://review.openstack.org/191871 (Icehouse)
- https://review.openstack.org/191865 (Juno)
- https://review.openstack.org/191786 (Kilo)
- https://review.openstack.org/191785 (Liberty)


Credits
~~~~~~~
- Bastian Blank from Credativ (CVE-2015-1850)


References
~~~~~~~~~~
- https://launchpad.net/bugs/1415087
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1850


Notes
~~~~~
- This fix will be included in future 2014.1.5 (icehouse), 2014.2.4
  (juno) and 2015.1.1 (kilo) releases.