[<prev] [next>] [day] [month] [year] [list]
Date: Wed, 30 Mar 2016 13:47:29 +0000
From: Tristan Cacqueray <tdecacqu@...hat.com>
To: oss-security@...ts.openwall.com
Subject: [OSSA 2016-007.2] Nova host data leak through resize/migration
(CVE-2016-2140) ERRATA #2
=============================================================
OSSA-2016-007.2: Nova host data leak through resize/migration
=============================================================
:Date: March 08, 2016
:CVE: CVE-2016-2140
Affects
~~~~~~~
- Nova: <=2015.1.3, >=12.0.0 <=12.0.2
Description
~~~~~~~~~~~
Matthew Booth from Red Hat reported a vulnerability in Nova instance
resize/migration. By overwriting an ephemeral or root disk with a
malicious image before requesting a resize, an authenticated user may
be able to read arbitrary files from the compute host. Only setups
using libvirt driver with raw storage and setting "use_cow_images =
False" (not default) are affected.
Errata
~~~~~~
The former fix did not take into account the usage of non-disk-image
backends and caused a regression for this use-case. This update
provides an additional fix for that issue. Moreover, the kilo backport
caused a regression in live migration where the disk info file is JSON
encoded. This second update provides an additional fix for
stable/kilo.
Patches
~~~~~~~
- https://review.openstack.org/289960 - original (Kilo)
- https://review.openstack.org/290847 - errata (Kilo)
- https://review.openstack.org/294205 - errata#2 (Kilo)
- https://review.openstack.org/289958 - original (Liberty)
- https://review.openstack.org/290843 - errata (Liberty)
- https://review.openstack.org/289957 - original (Mitaka)
- https://review.openstack.org/290715 - errata (Mitaka)
Credits
~~~~~~~
- Matthew Booth from Red Hat (CVE-2016-2140)
References
~~~~~~~~~~
- https://bugs.launchpad.net/bugs/1548450
- https://bugs.launchpad.net/bugs/1555287
- https://bugs.launchpad.net/bugs/1558697
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2140
Notes
~~~~~
- This fix will be included in future 2015.1.4 (kilo) and 12.0.3
(liberty) releases.
OSSA History
~~~~~~~~~~~~
- 2016-03-30 - Errata 2
- 2016-03-09 - Errata 1
- 2016-03-08 - Original Version
--
Tristan Cacqueray
OpenStack Vulnerability Management Team
Download attachment "signature.asc" of type "application/pgp-signature" (474 bytes)
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
