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Note: the current version of the following document is available here:
https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05333384

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c05333384
Version: 1

HPSBGN03676 rev.1 - HPE Helion OpenStack Glance Image Service, Remote Denial
of Service (DoS)

NOTICE: The information in this Security Bulletin should be acted upon as
soon as possible.

Release Date: 2016-11-15
Last Updated: 2016-11-15

Potential Security Impact: Remote: Denial of Service (DoS)

Source: Hewlett Packard Enterprise, Product Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified with HPE Helion
OpenStack Glance image service. This vulnerability could be exploited
remotely to allow a Denial of Service (DoS).

References:

  - CVE-2016-8611 - OpenStack Glance image service, Remote Denial of Service
(DoS)

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

  - HP Helion OpenStack all
  - HPE Helion OpenStack all

BACKGROUND

  CVSS Base Metrics
  =================
  Reference, CVSS V3 Score/Vector, CVSS V2 Score/Vector

    CVE-2016-8611
      4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
      4.0 (AV:N/AC:L/Au:S/C:N/I:N/A:P)

    Information on CVSS is documented in
    HPE Customer Notice HPSN-2008-002 here:

https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c01345499

RESOLUTION

HPE has provided the following mitigations to resolve this issue: 
 
 * Deploy rate-limiting proxies or web application firewalls
    
   + For all versions of Glance which expose either the v1 or the v2 /images
API, operators are recommended to deploy external rate-limiting proxies or
web application firewalls. This will provide a front-end layer of protection
to Glance. The Glance database should be monitored for abnormal growth.
Although rate-limiting does not eliminate this vulnerability, it will slow it
to the point where operators can react prior to a Denial of Service
occurring. 
 
 
 * Restrict image creation to the admin role
  
  + Another possible mitigation is to restrict image creation to the admin
role. This should only be done when there are Glance nodes dedicated to
end-user access only. 
 
   + For further recommendations on external rate limiting and restricting
image creation, please refer to the Open Stack Security Notice OSSN-0076 -
<https://wiki.openstack.org/wiki/OSSN/OSSN-0076>

HISTORY
Version:1 (rev.1) - 15 November 2016 Initial release

Third Party Security Patches: Third party security patches that are to be
installed on systems running Hewlett Packard Enterprise (HPE) software
products should be applied in accordance with the customer's patch management
policy.

Support: For issues about implementing the recommendations of this Security
Bulletin, contact normal HPE Services support channel. For other issues about
the content of this Security Bulletin, send e-mail to security-alert@hpe.com.

Report: To report a potential security vulnerability for any HPE supported
product:
  Web form: https://www.hpe.com/info/report-security-vulnerability
  Email: security-alert@hpe.com

Subscribe: To initiate a subscription to receive future HPE Security Bulletin
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Security Bulletin Archive: A list of recently released Security Bulletins is
available here: http://www.hpe.com/support/Security_Bulletin_Archive

Software Product Category: The Software Product Category is represented in
the title by the two characters following HPSB.

3C = 3COM
3P = 3rd Party Software
GN = HPE General Software
HF = HPE Hardware and Firmware
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PV = ProCurve
ST = Storage Software
UX = HP-UX

Copyright 2016 Hewlett Packard Enterprise

Hewlett Packard Enterprise shall not be liable for technical or editorial
errors or omissions contained herein. The information provided is provided
"as is" without warranty of any kind. To the extent permitted by law, neither
HP or its affiliates, subcontractors or suppliers will be liable for
incidental,special or consequential damages including downtime cost; lost
profits; damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration. The
information in this document is subject to change without notice. Hewlett
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referenced herein are trademarks of Hewlett Packard Enterprise in the United
States and other countries. Other product and company names mentioned herein
may be trademarks of their respective owners.
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