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Date: Tue, 16 Jun 2015 10:41:59 -0700
From: Tristan Cacqueray <>
Subject: [OSSA 2015-011] Cinder host file disclosure through qcow2 backing
 file (CVE-2015-1850)

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

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

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

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

- (Icehouse)
- (Juno)
- (Kilo)
- (Liberty)

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


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

Tristan Cacqueray
OpenStack Vulnerability Management Team

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