-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Note: the current version of the following document is available here: https://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c05012469 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c05012469 Version: 1 HPSBHF03439 rev.1 - HP Commercial PCs with Sure Start, Local Denial of Service NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2016-02-25 Last Updated: 2016-02-26 Potential Security Impact: Denial of Service (DoS) Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY HP has identified a potential security vulnerability with the Sure Start implementation on certain 2015 commercial platforms. This vulnerability could be exploited locally by administrator or root level privileges and if compromised, the Sure Start systems could fail to recover the BIOS. References: * CVE-2016-2243 * PSRT110027 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP Commercial Notebook, Desktop, and Workstation versions See the tables in the vulnerability resolution for the impacted products. BACKGROUND For a PGP signed version of this security bulletin please write to: security-alert@xxxxxx For a PGP signed version of this security bulletin please write to: hp-security-alert@xxxxxx CVSS 2.0 Base Metrics ================================================================================ Reference Base Vector Base Score CVE-2016-2243 (AV:L/AC:L/Au:N/C:P/I:C/A:P) 6.1 ================================================================================ Information on CVSS is documented in HP Customer Notice: HPSN2008002. RESOLUTION HP has made the following product updates available for the impacted products. To acquire the firmware updates, go to http://www.hp.com 1. Select Support and then Download Drivers. 2. Enter your product name or number in the Find my product field. 3. Choose the product from the returned search. 4. Choose the operating system. 5. Under the Download Index, select BIOS, and download the BIOS version as listed in the table below. Follow the installation instructions to install the firmware update. Series Product name BIOS Version Win Softpaq ZBook HP ZBook 15 G3 & ZBook 17 G3 1.03 SP74756 ZBook HP ZBook 15u G3 1.03 SP74756 ZBook HP ZBook Studio G3 1.04 SP74757 1000 Series HP EliteBook Folio 1040 G3 1.01 SP74768 1000 Series HP EliteBook Folio 1012 x2 G2 1.1 SP74770 1000 Series HP EliteBook 840 G3 1.04 SP74748 1000 Series HP EliteBook 850 G3 1.04 SP74748 1000 Series HP EliteBook 820 G3 1.04 SP74748 700 series HP Elitebook 745 G3 1.08 SP74691 700 series HP Elitebook 755 G3 1.08 SP74691 700 series HP Elitebook 725 G3 1.08 SP74691 700 series HP mt42 Mobile Thin Client 1.05 SP74761 800 series HP EliteDesk 800 G2 TWR 2.09 SP74661 800 series HP EliteDesk 800 G2 DM 2.1 SP74666 800 series HP mp9 G2 Retail System 2.1 SP74666 800 series HP EliteDesk 800 SFF 2.09 SP74661 800 series HP EliteOne 800 G2 23-in T/NT 2.1 SP74680 700 series HP EliteDesk 705 G2 MT/SFF 2.09 SP74655 700 series HP EliteDesk 705 G2 DM 2.05 SP74677 700 series HP EliteOne 705 G2 23in AiO T/NT 2.07 SP74686 Product name BIOS Version Win Softpaq Linux Softpaq HP Z240 Tower Workstation N51 01.11 SP74759 SP74760 HP Z240 SFF Workstation N51 01.11 SP74759 SP74760 HP Z238 Microtower Workstation N51 01.11 SP74759 SP74760 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) 10 February 2016 Initial release 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, contact normal HP Services support channel. For other issues about the content of this Security Bulletin, send email to hpsecurityalert@xxxxxx Report: To report a potential security vulnerability with any HP supported product, send email to: hpsecurityalert@xxxxxx Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://support.hp.com/us/en/subscribe/ Security Bulletin Archive: A list of recently released Security Bulletins is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/ secBullArchive 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 ST = HP Storage Software GN = HP General Software Support: For further information, contact normal HP Services support channel. Report: To report a potential security vulnerability with any HP supported product, send Email to: hp-security-alert@xxxxxx It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information. To get the securityalert PGP key, please send an email message as follows: To: hpsecurityalert@xxxxxx Subject: get key Products: HP ZBook 15 G3 & ZBook 17 G3, HP ZBook 15u G3, HP ZBook Studio G3, HP EliteBook Folio 1040 G3, HP EliteBook Folio 1012 x2 G2, HP EliteBook 840 G3, HP EliteBook 850 G3, HP EliteBook 820 G3, H Elitebook 745 G3, HP Elitebook 755 G3, HP Elitebook 725 G3, HP mt42 Mobile Thin Client, HP EliteDesk 8, HP Z240 Tower Workstation N51, HP Z240 SFF Workstation N51, HP Z238 Microtower Workstation N51 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. 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