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Note: the current version of the following document is available here:
https://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c05158555

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c05158555
Version: 1

HPSBHF3548 - Linux Kernel Flaw, ASN.1 DER decoder for x509 certificate DER
files
NOTICE: The information in this Security Bulletin should be acted upon as soon
as possible.

Release Date: 2016-06-01
Last Updated: 2016-06-01

Potential Security Impact: System downtime, or privilege escalation.

Source: HP, HP Product Security Response Team (PSRT)

VULNERABILITY SUMMARY

A flaw was found in the way the Linux kernel's ASN.1 DER decoder processed
certain certificate files with tags of indefinite length. A local, unprivileged
user could use a specially crafted X.509 certificate DER file to crash the
system or, potentially, escalate his or her privileges on the system.

References: CVE-2016-0758, PSR-2016-0054

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

  * HP ThinPro 4.4
  * HP ThinPro 5.0
  * HP ThinPro 5.1
  * HP ThinPro 5.2
  * HP ThinPro 5.2.1

BACKGROUND

For a PGP signed version of this security bulletin please write to:
hp-security-alert@hp.com

CVSS 2.0 Base Metrics
================================================================================
Reference                      Base Vector                  Base Score
CVE-2016-0758         AV:L/AC:L/Au:N/C:C/I:C/A:C               7.2
================================================================================
Information on CVSS is documented in HP Customer Notice: HPSN-2008-002.

RESOLUTION

HP has released the following software updates to resolve the vulnerability.
Patches for the affected version of HP ThinPro can be found through the links
below:

  * HP ThinPro 5.2.1

    ftp://ftp.hp.com/pub/tcdebian/updates/5.2.1/service_packs/
    CVE-2016-0758-1.0-all-5.2.1-x86-SQ.xar

  * HP ThinPro 5.2

    ftp://ftp.hp.com/pub/tcdebian/updates/5.2/service_packs/
    CVE-2016-0758-1.0-all-5.2-x86-SQ.xar

  * HP ThinPro 5.1

    ftp://ftp.hp.com/pub/tcdebian/updates/5.1/service_packs/
    CVE-2016-0758-1.0-all-5.0-5.1-x86-SQ.xar

  * HP ThinPro 5.0

    ftp://ftp.hp.com/pub/tcdebian/updates/5.1/service_packs/
    CVE-2016-0758-1.0-all-5.0-5.1-x86-SQ.xar

  * HP ThinPro 4.4

    ftp://ftp.hp.com/pub/tcdebian/updates/4.4/service_packs/
    CVE-2016-0758-1.0-all-4.4-x86-SQ.xa r

System management and security procedures must be reviewed frequently to
maintain system integrity. HP is continually reviewing and enhancing the
security features of software products to provide customers with current secure
solutions.

"HP is broadly distributing this Security Bulletin in order to bring to the
attention of users of the affected HP products the important security
information contained in this Bulletin. HP recommends that all users determine
the applicability of this information to their individual situations and take
appropriate action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently, HP will not be
responsible for any damages resulting from user's use or disregard of the
information provided in this Bulletin. To the extent permitted by law, HP
disclaims all warranties, either express or implied, including the warranties
of merchantability and fitness for a particular purpose, title and
non-infringement."

REVISION HISTORY

Version:1 (rev.1) 27 May 2016: Initial release

Copyright 2016 Hewlett-Packard Development Company, L.P.

Hewlett-Packard Company 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 Company and the names of Hewlett-Packard
products referenced herein are trademarks of Hewlett-Packard Company 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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