Bug 1313454 (CVE-2016-2140) - CVE-2016-2140 openstack-nova: Host data leak through resize/migration
Summary: CVE-2016-2140 openstack-nova: Host data leak through resize/migration
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-2140
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1312924 1313655 1313656 1313657 1313658 1315890 1315891
Blocks: 1313456
TreeView+ depends on / blocked
 
Reported: 2016-03-01 15:55 UTC by Adam Mariš
Modified: 2021-02-17 04:15 UTC (History)
36 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
An information-exposure flaw was found in the OpenStack Compute (nova) resize and migrate functionality. An authenticated user could write a malicious qcow header to an ephemeral or root disk, referencing a block device as a backing file. With a subsequent resize or migration, file system content on the specified device would be leaked to the user. Only setups using libvirt with raw storage and "use_cow_images = False" were affected.
Clone Of:
Environment:
Last Closed: 2016-04-13 06:29:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0363 0 normal SHIPPED_LIVE Important: openstack-nova security update 2016-03-14 14:33:40 UTC
Red Hat Product Errata RHSA-2016:0364 0 normal SHIPPED_LIVE Important: openstack-nova security update 2016-03-14 14:33:29 UTC
Red Hat Product Errata RHSA-2016:0365 0 normal SHIPPED_LIVE Important: openstack-nova security update 2016-03-14 14:33:19 UTC
Red Hat Product Errata RHSA-2016:0366 0 normal SHIPPED_LIVE Important: openstack-nova security update 2016-03-14 14:33:10 UTC

Description Adam Mariš 2016-03-01 15:55:56 UTC 
It was reported that 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.

Affected versions: <=2015.1.2, >=12.0.0 <=12.0.2
Comment 1 Adam Mariš 2016-03-01 15:56:09 UTC 
Acknowledgments:

Name: Matthew Booth (Red Hat)
Comment 3 Adam Mariš 2016-03-03 09:13:08 UTC 
Created attachment 1132693 [details]
Master/mitaka patch
Comment 4 Adam Mariš 2016-03-03 09:13:38 UTC 
Created attachment 1132694 [details]
Stable/kilo patch
Comment 5 Adam Mariš 2016-03-03 09:14:09 UTC 
Created attachment 1132695 [details]
Stable/liberty patch
Comment 10 Adam Mariš 2016-03-08 15:36:25 UTC 
Upstream patches:

https://review.openstack.org/289957 (mitaka)
https://review.openstack.org/289958 (liberty)
https://review.openstack.org/289960 (kilo)
Comment 12 Garth Mollett 2016-03-08 21:52:54 UTC 
Created openstack-nova tracking bugs for this issue:

Affects: fedora-all [bug 1315891]
Comment 13 errata-xmlrpc 2016-03-08 22:56:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6

Via RHSA-2016:0366 https://rhn.redhat.com/errata/RHSA-2016-0366.html
Comment 14 errata-xmlrpc 2016-03-08 22:57:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7

Via RHSA-2016:0365 https://rhn.redhat.com/errata/RHSA-2016-0365.html
Comment 15 errata-xmlrpc 2016-03-08 22:57:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7

Via RHSA-2016:0364 https://rhn.redhat.com/errata/RHSA-2016-0364.html
Comment 16 errata-xmlrpc 2016-03-08 22:58:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

Via RHSA-2016:0363 https://rhn.redhat.com/errata/RHSA-2016-0363.html
Comment 19 Andrej Nemec 2016-03-09 08:53:01 UTC 
External references:

http://seclists.org/oss-sec/2016/q1/563
Comment 21 Andrej Nemec 2016-03-10 10:25:38 UTC 
(In reply to Andrej Nemec from comment #19)
> External references:
> 
> http://seclists.org/oss-sec/2016/q1/563

There is an errata released, which concerns these patches.

http://seclists.org/oss-sec/2016/q1/579
Comment 22 Garth Mollett 2016-03-14 22:57:56 UTC 
(In reply to Andrej Nemec from comment #21)
> (In reply to Andrej Nemec from comment #19)
> > External references:
> > 
> > http://seclists.org/oss-sec/2016/q1/563
> 
> There is an errata released, which concerns these patches.
> 
> http://seclists.org/oss-sec/2016/q1/579

Updated builds correcting this issue have been added to errata.
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