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Date: Mon, 13 Jan 2014 14:44:51 +0100
From: Thierry Carrez <thierry@...nstack.org>
To: Open Source Security <oss-security@...ts.openwall.com>
Subject: [OSSA 2014-001] Nova live snapshots use an insecure local directory
 (CVE-2013-7048)

OpenStack Security Advisory: 2014-001
CVE: CVE-2013-7048
Date: January 13, 2013
Title: Nova live snapshots use an insecure local directory
Reporter: Daniel Berrange (Red Hat)
Products: Nova
Affects: Grizzly and later

Description:
Daniel Berrange from Red Hat reported that the directories used to
temporarily store live snapshots on Nova compute nodes were writable to
all local users. A local attacker with shell access on compute nodes
could therefore read and modify the contents of live snapshots before
those are uploaded to the image service.

Icehouse (development branch) fix:
https://review.openstack.org/#/c/58852/

Havana fix:
https://review.openstack.org/#/c/60548/

Grizzly fix:
https://review.openstack.org/#/c/60550/

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7048
https://bugs.launchpad.net/nova/+bug/1227027

Regards,

-- 
Thierry Carrez
OpenStack Vulnerability Management Team


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