The latest security information on Intel® products.

Intel® Processors Voltage Settings Modification Advisory

Intel ID: INTEL-SA-00289
Advisory Category: Firmware
Impact of vulnerability: Escalation of Privilege, Information Disclosure
Severity rating: HIGH
Original release: 12/10/2019
Last revised: 12/11/2019

Summary: 

A potential security vulnerability in some Intel® Processors may allow escalation of privilege and/or information disclosure.  Intel has released firmware updates to system manufacturers to mitigate this potential vulnerability

Vulnerability Details:

CVEID: CVE-2019-11157

Description: Improper conditions check in voltage settings for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege and/or information disclosure via local access.

CVSS Base Score: 7.9 High

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

Affected Products:

Intel® 6th, 7th, 8th, 9th & 10th Generation Core™ Processors.

Intel® Xeon® Processor E3 v5 & v6 and Intel® Xeon® Processor E-2100 & E-2200 Families.

Product Family

Segment

CPUID

Platform ID

8th Generation Intel® Core™ Processor Family

Mobile

806 E9

10

8th Generation Intel® Core™ Processor Family

Mobile

806 EC

10

8th Generation Intel® Core™ Processor Family

Mobile

906EA

22

8th Generation Intel® Core™ Processor Family

 Desktop

906EA

22

8th Generation Intel® Core™ Processor Family

Mobile

806EA

C0

8th Generation Intel® Core™ Processor Family

Desktop

906EB

2

Intel® Celeron® Processor G Series

Desktop

906EB

2

8th Generation Intel® Core™ Processor Family

Desktop

906EA

22

Intel® Xeon® Processor E Family

Server

906EA

22

Intel® Xeon® Processor E Family

workstation

906EA

22

Intel® Xeon® Processor E Family

AMT Server

906EA

22

Intel® Xeon® Processor E Family

Server

906EA

22

Intel® Xeon® Processor E Family

workstation

906EA

22

Intel® Xeon® Processor E Family

AMT Server

906EA

22

9th Generation Intel® Core™ Processor Family

Desktop

906ED

22

9th Generation Intel® Core™ Processor Family

Desktop

906ED

22

10th Generation Intel® Core™ Processor Family

Mobile

806EC

94

10th Generation Intel® Core™ Processor Family

Mobile

A0660

80

8th Generation Intel® Core™ Processor Family

Mobile

906 E9

2A

7th Generation Intel® Core™ Processor Family

Mobile

906 E9

2A

8th Generation Intel® Core™ Processor Family

Mobile

806EA

C0

7th Generation Intel® Core™ Processor Family

Desktop

906 E9

2A

7th Generation Intel® Core™ Processor Family

Mobile

806 E9

C0

7th Generation Intel® Core™ Processor Family

Mobile

806 E9

C0

Intel® Core™ X-series Processors

Desktop

906 E9

2A

Intel® Xeon® Processor E3 v6 Family

Mobile/server/Emb

906 E9

2A

7th Generation Intel® Core™ Processor Family

Mobile

806 E9

C0

6th Generation Intel® Core™ Processor Family

Mobile

506 E3

36

6th Generation Intel® Core™ Processor Family

Desktop

506 E3

36

6th Generation Intel® Core™ Processors

Mobile

406 E3

C0

6th Generation Intel® Core™ Processor Family

Mobile

406 E3

C0

Intel® Xeon® Processor E3 v5 Family

Server/Embed

506 E3

36

6th Generation Intel® Core™ Processors

Mobile

406 E3

C0

8th Generation Intel® Core™ Processors

Mobile

806EB

D0

8th Generation Intel® Core™ Processors

Mobile

806EC

80

Recommendations:

Intel recommends that users of the above Intel® Processors update to the latest BIOS version provided by the system manufacturer that addresses these issues

An SGX TCB key recovery is planned for later in Q1 2020, this document will be updated with technical details in due course.

Acknowledgements:

Intel would like to thank the following reporters for finding and reporting the vulnerability to us via coordinated disclosure.

Intel thanks University of Birmingham: Kit Murdock, David Oswald, Flavio Garcia, Navjivan Pal; KU Leuven: Jo Van Bulck, Frank Piessens; TU Graz: Daniel Gruss.

Intel thanks Technische Universität Darmstadt: Zijo Kenjar, Tommaso Frassetto, Ahmed-Reza Sadeghi; University of California, Irvine: David Gens, Michael Franz.

Intel thanks University of Maryland: Gang Qu; Tsinghua University: Yongqiang Lyu, Dongsheng Wang; Pengfei Qiu.

Researchers from University of Birmingham, KU Leuven and TU Graz provided Intel with a Paper and Proof of Concept (POC) in June 2019 and researchers from Technische Universität Darmstadt and University of California provided a Paper and Proof of Concept (POC) in early August 2019. Intel subsequently confirmed each submission demonstrated this individually.

Researchers from University of Maryland and Tsinghua University provided Intel with a Paper in late August 2019 describing 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 History

Revision Date Description
1.0 12/10/2019 Initial Release
1.1 12/11/2019 Updated acknowledgements

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.

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Copyright © Intel Corporation 2019

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