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AUSCERT External Security Bulletin Redistribution
17 March 2020
AusCERT Security Bulletin Summary
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2020-0556
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The latest security information on Intel products.
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
A potential security vulnerability in BlueZ may allow escalation of privilege
and denial of service. BlueZ is releasing software updates to mitigate this
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
BlueZ before version 5.54.
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
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 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:
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
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