-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.0931
                              BlueZ Advisory
                               17 March 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           BlueZ
Publisher:         Intel
Operating System:  UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Increased Privileges -- Remote/Unauthenticated
                   Denial of Service    -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-0556  

Original Bulletin: 
   https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html

- --------------------------BEGIN INCLUDED TEXT--------------------

INTEL-SA-00352

The latest security information on Intel products.

BlueZ Advisory

        Intel ID:                       INTEL-SA-00352
Advisory Category:        Software
Impact of vulnerability : Escalation of Privilege, Denial of Service
Severity rating :         HIGH
Original release:         03/10/2020
Last revised:             03/16/2020

Summary:

A potential security vulnerability in BlueZ may allow escalation of privilege
and denial of service. BlueZ is releasing software updates to mitigate this
potential vulnerability.

Vulnerability Details:

CVEID: CVE-2020-0556

Description: Improper access control in subsystem for BlueZ before version 5.54
may allow an unauthenticated user to potentially enable escalation of privilege
and denial of service via adjacent access.

CVSS Base Score: 7.1 High

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Affected Products:

BlueZ before version 5.54.

Recommendations:

Intel recommends updating BlueZ to version 5.54 or later when it becomes
available at www.bluez.org .

An update patch for versions prior to 5.54 is posted for download at these
locations:

On Linux-Bluetooth:

https://lore.kernel.org/linux-bluetooth/
20200310023516.209146-1-alainm@chromium.org/

On PatchWorks:

https://patchwork.kernel.org/patch/11428317/

https://patchwork.kernel.org/patch/11428319/

Acknowledgements:

The following issue was found by Google employees.

Intel, and nearly the entire technology industry, follows a disclosure practice
called Coordinated Disclosure, under which a cybersecurity vulnerability is
generally publicly disclosed only after mitigations are available.

Revision History

Revision    Date          Description
1.0      03/10/2020 Initial Release
1.1      03/16/2020 Updated release version

Legal Notices and Disclaimers

Intel provides these materials as-is, with no express or implied warranties.

All products, dates, and figures specified are preliminary based on current
expectations, and are subject to change without notice.

Intel, processors, chipsets, and desktop boards may contain design defects or
errors known as errata, which may cause the product to deviate from published
specifications. Current characterized errata are available on request.

Intel technologies   features and benefits depend on system configuration and
may require enabled hardware, software or service activation. Performance
varies depending on system configuration. No computer system can be absolutely
secure. Check with your system manufacturer or retailer or learn more at https:
//intel.com .

Some results have been estimated or simulated using internal Intel analysis or
architecture simulation or modeling, and provided to you for informational
purposes. Any differences in your system hardware, software or configuration
may affect your actual performance.

Intel and the Intel logo are trademarks of Intel Corporation in the United
States and other countries.

*Other names and brands may be claimed as the property of others.
Copyright (C) Intel Corporation 2020

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=sjC6
-----END PGP SIGNATURE-----