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AUSCERT External Security Bulletin Redistribution
ESB-2021.3735
Intel Processor Advisory
10 November 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Intel Processors
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Console/Physical
Resolution: Patch/Upgrade
CVE Names: CVE-2021-0146
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00528.html
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Intel ID: INTEL-SA-00528
Advisory Category: Hardware
Impact of vulnerability : Escalation of Privilege
Severity rating : HIGH
Original release: 11/09/2021
Last revised: 11/09/2021
Summary:
A potential security vulnerability in some Intel Processors may allow
escalation of privilege. Intel is releasing firmware updates to mitigate this
potential vulnerability.
Vulnerability Details:
CVEID: CVE-2021-0146
Description: Hardware allows activation of test or debug logic at runtime for
some Intel(R) processors which may allow an unauthenticated user to potentially
enable escalation of privilege via physical access.
CVSS Base Score: 7.1 High
CVSS Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products:
+-------------+-------------------------------------------+------------+-------------+
|Segment |Chipset/SOC or Processor |CPU ID |Platform ID |
+-------------+-------------------------------------------+------------+-------------+
|Desktop, |Intel Pentium Processor J Series, N Series |506C9 |3 |
|Mobile | | | |
| |Intel Celeron Processor J Series, N Series | | |
| | | | |
| |Intel Atom Processor A Series | | |
| | | | |
| |Intel Atom Processor E3900 Series | | |
+-------------+-------------------------------------------+------------+-------------+
|Embedded |Intel Pentium Processor N Series |506CA |3 |
| | | | |
| |Intel Celeron Processor N Series | | |
| | | | |
| |Intel Atom Processor E3900 Series | | |
+-------------+-------------------------------------------+------------+-------------+
|Desktop, |Intel Pentium Processor Silver Series/ J&N |706A1 |1 |
|Mobile |Series | | |
+-------------+-------------------------------------------+------------+-------------+
|Desktop, |Intel Pentium Processor Silver Series/ J&N |706A8 |1 |
|Mobile |Series - Refresh | | |
+-------------+-------------------------------------------+------------+-------------+
|Embedded |Intel Atom Processor C3000 |506F1 |1 |
+-------------+-------------------------------------------+------------+-------------+
Recommendations:
Intel recommends that users of affected Intel Processors update to the latest
version provided by the system manufacturer that addresses these issues.
Acknowledgements:
This vulnerability was researched and reported by Mark Ermolov and Dmitry
Sklyarov (Positive Technologies) and Maxim Goryachy (independent).
Intel would like to thank its employees Chandni Bhowmik and Ilya Wagner for
identifying and developing the Proof of Concept (POC) for CVE-2021-0146 on
Intel Pentium Processor Silver Series/ J&N Series and Intel Pentium Processor
Silver Series/ J&N Series Refresh Processor Family.
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 11/09/2021 Initial Release
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