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Microprocessor Memory Mapping Advisory

Intel ID: INTEL-SA-00238
Advisory Category: Hardware
Impact of vulnerability: Information Disclosure
Severity rating: LOW
Original release:04 04/09/2019
Last revised: 04/09/2019


A potential security vulnerability in some microprocessors may allow information disclosure.

Vulnerability Details:

CVEID: CVE-2019-0162

Description: Memory access in virtual memory mapping for some microprocessors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS Base Score: 3.8 Low


Affected Products:

Some Microprocessors with Virtual Memory Mapping.


Intel recommends that users follow existing best practices to mitigate exploitation of this vulnerability.  More information on these practices can be found here:

Security Best Practices For Side Channel Resistance:

Guidelines For Mitigating Timing Side Channels Against Cryptographic Implementations:

Additional information regarding Spoiler:


Intel would like to thank Saad Islam, Ahmad Moghimi, Berk Gulmezoglu, and Berk Sunar of Worcester Polytechnic Institute and Ida Bruhns, Moritz Krebbel, and Thomas Eisenbarth from University of Lübeck for reporting this issue.

This issue was found internally by Intel employees.  Intel would like to thank Ke Sun, Henrique Kawakami, Kekai Hu and Rodrigo Branco.

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 04/09/2019
Initial Release

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