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

Date:

June 16, 2015

CVE:

CVE-2015-1851

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.

Errata

CVE-2015-1850 has been assigned to a similar issue in Nova, the correct CVE number for Cinder is CVE-2015-1851

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-2015-1851)

References

• https://launchpad.net/bugs/1415087

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1851

Notes

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

OSSA History

• 2015-06-17 - Errata 1

• 2015-06-16 - Original Version