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Date: Tue, 14 Apr 2015 14:53:59 -0400
From: Tristan Cacqueray <>
Subject: [OSSA 2015-006] Unauthorized delete of versioned Swift object (CVE-2015-1856)

OSSA-2015-006: Unauthorized delete of versioned Swift object

:Date: April 14, 2015
:CVE: CVE-2015-1856

- Swift: versions through 2.2.2

Clay Gerrard from SwiftStack reported a vulnerability in Swift object
versioning. An authenticated user can delete the most recent version
of any versioned object whose name is known if the user have listing
access to the x-versions-location container. Only Swift setups with
allow_version setting are affected.

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

- Clay Gerrard from SwiftStack (CVE-2015-1856)


- This fix will be included in the upcoming 2.3.0 release.

Tristan Cacqueray
OpenStack Vulnerability Management Team

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