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AUSCERT External Security Bulletin Redistribution
[INTEL-SA-00247] Partial Physical Address Leakage Advisory
12 June 2019
AusCERT Security Bulletin Summary
Product: Intel Microprocessors
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Privileged Data -- Existing Account
CVE Names: CVE-2019-0174
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The latest security information on Intel products.
Partial Physical Address Leakage Advisory
Intel ID: INTEL-SA-00247
Advisory Category: Hardware
Impact of vulnerability : Information Disclosure
Severity rating : LOW
Original release: 06/11/2019
Last revised: 06/11/2019
A potential security vulnerability in some microprocessors may allow partial
information disclosure via local access.
Description: Logic condition in specific microprocessors may allow an
authenticated user to potentially enable partial physical address information
disclosure via local access.
CVSS Base Score: 3.8 Low
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Intel Core X-series Processors, 4th Generation Intel Core i5 Processors,4th
Generation Intel Core i3 Processors, Intel Pentium Processor G Series, Intel
Pentium Processor 3000 Series, Intel Celeron Processor 2000 Series, Intel Xeon
Processor E7 v3 Family, Intel Xeon Processor E5 v3 Family, Intel Xeon Processor
E3 v3 Family.
Partial physical address information potentially disclosed through exploitation
of this vulnerability does not contain user secrets, but could potentially be
utilized to enhance unrelated attack methods. For published exploits that Intel
is aware of, Intel recommends users follow existing best practices including:
The use of DRAM modules resistant to Rowhammer style attacks.
Security Best Practices For Side Channel Resistance:
Guidelines For Mitigating Timing Side Channels Against Cryptographic
Intel would like to thank Andrew Kwong, Daniel Genkin from University of
Michigan and Daniel Gruss from Graz University of Technology and Yuval Yarom
from University of Adelaide and Data61 for reporting this issue.
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 06/11/2019 Initial Release
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 2019
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