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SUPPORT COMMUNICATION- SECURITY BULLETIN

Document ID: c06318199

Version: 1

HPSBHF03614 rev. 1 - Processor Registers Left Unlocked When TPM is Disabled

Notice:: The information in this security bulletin should be acted upon as soon as possible.

Release date : 03-May-2019

Last updated : 03-May-2019

Potential Security Impact:
Escalation of Privilege, Denial of Service, Information Disclosure, Loss of Confidentiality, Loss of Integrity
Source: HP, HP Product Security Response Team (PSRT)
Reported By: HP Inc.

VULNERABILITY SUMMARY
HP has identified a security vulnerability with some versions of Workstation BIOS (UEFI Firmware) where the runtime BIOS code could be tampered with if the TPM is disabled. The impacted Workstations ship with TPM enabled by default, except in certain geographic regions where TPM is required to be disabled. This vulnerability was discovered during internal testing, and HP is not aware of any exploits linked to it.
Updated Workstation BIOS (UEFI Firmware) is available using the links in the RESOLUTION section below.
Reference Number
CVE-2019-6321, CVE-2019-6322, PSR-2019-0091
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
See RESOLUTION section for impacted products.
BACKGROUND
For a PGP signed version of this security bulletin please write to: hp-security-alert@hp.com
CVSS 3.0 Base Metrics
Reference
Base Vector
Base Score
CVE-2019-6321
Geographic regions where TPM is required to be disabled:
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2
CVE-2019- 6322
Other systems:
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
6.8
RESOLUTION
HP has identified and released Workstation BIOS (UEFI Firmware) for the affected products. Versions greater than or equal to the Minimum Rev. do not have this vulnerability.
note:
HP recommends keeping your system up to date with the latest firmware and software.
Product Name
Minimum Rev.
Latest Rev.
SoftPaq #
SoftPaq Link
HP Z4 G4 Workstation (Xeon W)
1.70
1.75
SP95580
HP Z4 G4 Workstation (Xeon W) (Linux)
1.70
1.75
SP95579
HP Z4 G4 Core-X Workstation
1.70
1.75
SP95582
HP Z4 G4 Core-X Workstation (Linux)
1.70
1.75
SP95581
HP Z6 G4 Workstation
1.71
2.18
SP95578
HP Z6 G4 Workstation (Linux)
1.71
2.18
SP95577
HP Z8 G4 Workstation
1.71
2.18
SP95578
HP Z8 G4 Workstation (Linux)
1.71
2.18
SP95577
Third Party Security Patches: Third party security patches that are to be installed on systems running HP 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, visit http://www.hp.com/go/contacthp to learn about your HP support options.
Report: To report a potential security vulnerability with any HP supported product, send email to: hp-security-alert@hp.com.
Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via email, visit https://www.hp.com/go/alerts.
Security Bulletin Archive: To view released Security Bulletins, search the HP Support Site for "security bulletin".
Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB.
PI
HP Printing and Imaging
HF
HP Hardware and Firmware
GN
HP General Software
It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information.
To get the security-alert PGP key, please send an e-mail message as follows:
Subject: get key
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 - 03 May 2019 Initial release.

HP Inc. 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 restorationThe information in this document is subject to change without notice.HP Inc. and the names of HP products referenced herein are trademarks of HP Inc. 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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