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HP Security Bulletin HPSBUX03577 SSRT102172 1

HP Security Bulletin HPSBUX03577 SSRT102172 1
Posted May 10, 2016
Authored by HP | Site hp.com

HP Security Bulletin HPSBUX03577 SSRT102172 1 - A potential security vulnerability has been identified in HP-UX VxFS ACL inheritance. The vulnerability could result in local unauthorized access to files. Revision 1 of this advisory.

tags | advisory, local
systems | hpux
advisories | CVE-2016-2016
MD5 | 314218dcdb7175a4cbf04b74247de62c

HP Security Bulletin HPSBUX03577 SSRT102172 1

Change Mirror Download
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Hash: SHA1

Note: the current version of the following document is available here:
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_n
a-c05121749

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c05121749
Version: 1

HPSBUX03577 SSRT102172 rev.1 - HP-UX VxFS, Local Unauthorized Access to Files

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

Release Date: 2016-05-09
Last Updated: 2016-05-09

Potential Security Impact: Local Unauthorized Access to Files

Source: Hewlett Packard Enterprise, Product Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified in HP-UX VxFS ACL
inheritance. The vulnerability could result in local unauthorized access to
files.

Notes:

- Default ACL entries "default:other:", "default:user:", and
"default:class:" are not inherited correctly.
- There is a risk that file access restrictions may not be effective on
inherited ACLs to restrict file or directory access by other users, for
example, by defining "default:other:---" in a parent directory.
- The defect does not impact "default:group:" entries.

References:

- CVE-2016-2016
- SSRT102172

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX 11iv3 VxFS 5.0, VxFS 5.0.1, VxFS 5.1SP1

- Base-VxFS-50 B.05.00.01 through B.05.00.02
- Base-VxFS-501 B.05.01.0 through B.05.01.03
- Base-VxFS-51 B.05.10.00 through B.05.10.02

Note: VxFS 4.1 on HP-UX 11iv3 and VxFS 5.0 on HP-UX 11iv2 are not affected.

BACKGROUND

CVSS 2.0 Base Metrics
===========================================================
Reference Base Vector Base Score
CVE-2016-2016 (AV:L/AC:L/Au:S/C:P/I:N/A:N) 1.7
===========================================================
Information on CVSS is documented
in HP Customer Notice: HPSN-2008-002

RESOLUTION

HPE has released the following updates to resolve the vulnerability in HP-UX
11iv3 VxFS.

- Base-VxFS-50

PHKL_44459 VxFS 5.0 MP1P14

- Base-VxFS-501

PHKL_44411 VxFS 5.0.1 RP3P14

- Base-VxFS-51

PHKL_44439 VxFS 5.1 SP1RP3P6

The updates are available for download at the following location:

https://h20565.www2.hpe.com/portal/site/hpsc/patch/home

Note: A valid HPE Passport account is needed to download the patches.
Please contact HPE Technical Support for assistance.

MANUAL ACTIONS: No

PRODUCT SPECIFIC INFORMATION

HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application
that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins
issued by HPE and lists recommended actions that may apply to a specific
HP-UX system. It can also download patches and create a depot automatically.
For more information see: https://h20392.www2.hpe.com/portal/swdepot/displayP
roductInfo.do?productNumber=B6834AA

The following text is for use by the HP-UX Software Assistant.

AFFECTED VERSIONS

For VxFS 5.0 MP1P14
HP-UX B.11.31
=============

VRTSvxfs.VXFS-KRN
action: install patch PHKL_44459 or subsequent

For VxFS 5.0.1 RP3P14
HP-UX B.11.31
=============

VRTSvxfs.VXFS-KRN
action: install patch PHKL_44411 or subsequent

For VxFS 5.1 SP1RP3P6
HP-UX B.11.31
=============

VRTSvxfs.VXFS-KRN
action: install patch PHKL_44439 or subsequent

END AFFECTED VERSIONS

HISTORY
Version:1 (rev.1) - 9 May 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 with any HPE supported
product, send Email to: security-alert@hpe.com

Subscribe: To initiate a subscription to receive future HPE Security Bulletin
alerts via Email: http://www.hpe.com/support/Subscriber_Choice

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
Packard Enterprise and the names of Hewlett Packard Enterprise products
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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