The latest security information on Intel® products.

2024.3 IPU - SMI Transfer Monitor Advisory

Intel ID: INTEL-SA-01083
Advisory Category: Hardware
Impact of vulnerability: Escalation of Privilege
Severity rating: HIGH
Original release: 08/13/2024
Last revised: 08/13/2024
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Summary: 

A potential security vulnerability in SMI Transfer monitor (STM) may allow escalation of privilege. Intel is releasing microcode updates to mitigate this potential vulnerability.

Vulnerability Details: 

CVEID:  CVE-2024-24853

Description: Incorrect behavior order in transition between executive monitor and SMI transfer monitor (STM) in some Intel® Processor may allow a privileged user to potentially enable escalation of privilege via local access.

CVSS Base Score 3.1: 7.2 High

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

CVSS Base Score 4.0: 7.3 High

CVSS Vector 4.0:  CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected Products:

Product Collection

Platform

Vertical Segment

CPU ID

Platform ID

2nd Generation Intel® Xeon® Scalable processor family

Purley Refresh

Server

50656

BF

1. 2nd Generation Intel® Xeon® Scalable processor family

2. Intel® Xeon® W processor family

3. Intel® Core™ X-series Processor

Purley Refresh

1. Server

2. Workstation

3. Desktop

50657

BF

3rd Generation Intel® Xeon® Scalable processor family

Cedar Island

Server

5065B

BF

1. Intel® Xeon® E processor family

2. 6th Generation Intel® Core™ Processor Family

Skylake

Greenlow

1. Server Workstation Embedded

2. Mobile

3. Desktop

506E3

36

3rd Gen Intel® Xeon® Scalable processor family

Whitley

1. Server

2. Workstation

606A6

87

Intel® Xeon® D Processor

Idaville

Embedded

606C1

10

10thGeneration Intel® Core™ Processor Family

Ice Lake

Mobile

706E5

80

11th Generation Intel® Core™ Processor Family

Tiger Lake

Mobile

806C1

80

11th Generation Intel® Core™ Processor Family

Tiger Lake

Embedded

806C1

80

11th Generation Intel® Core™ Processor Family

Tiger Lake

Mobile

806C2

11

1. 11th Generation Intel® Core™ Processor Family

2. Intel® Xeon® Processor Family

Tiger Lake

1. Mobile

2. Workstation

806D1

11

1. 11th Generation Intel® Core™ Processor Family

2. Intel® Xeon® Processor Family

Tiger Lake

Embedded

806D1

11

1. 8th Generation Intel® Core™ Processor Family

2,3,4. 7th Generation Intel® Core™ Processor Family

Kaby Lake

Mobile

806E9

C0

8thGeneration Intel® Core™ Processor Family

Kaby Lake

Mobile

806EA

C0

8thGeneration Intel® Core™ Processors

Whiskey Lake

Mobile

806EB

D0

1. 8th Generation Intel® Core™ Processors

2. 10th Generation Intel® Core™ Processor Family

3. Intel® Pentium® Gold Processor Series

4. Intel® Celeron® Processor 5000 Series

5. 10th Generation Intel® Core™ Processor Family

Whiskey Lake

Mobile

806EC

94

1. 7th Generation Intel® Core™ Processor Family

2. 7th Generation Intel® Core™ Processor Family

3. 8th Generation Intel® Core™ Processor Family

Intel® Pentium® Processor Family

4. Intel® Core™ X-series Processors

5. Intel® Xeon® E processor family

Kaby Lake

1. Desktop Embedded

2. Mobile Embedded

3. Mobile

4. Desktop

5. Server Workstation Embedded

906E9

2A

1. 8th Generation Intel® Core™ Processor Family

2. Intel® Xeon® E processor family

3. 8th Generation Intel® Core™ Processor Family

4. 8th Generation Intel® Core™ Processor Family

Coffee Lake

1. Mobile

2. Workstation

AMT Server

Server

3,4. Desktop

906EA

22

1. 8th Generation Intel® Core™ Processor Family

2. Intel® Pentium® Gold Processor Series

3. Intel® Celeron® Processor G Series

Coffee Lake

Desktop

906EB

02

9th Generation Intel® Core™ Processor Family

Coffee Lake

Desktop

906EC

22

1. 9th Generation Intel® Core™ Processor Family

2. Intel® Xeon® E processor family

3. 9th Generation Intel® Core™ Processor Family

Coffee Lake

1. Mobile

2. Workstation

AMT Server

3. Desktop

906ED

22

10th Generation Intel® Core™ Processor Family

Intel® Xeon® W processor family

Comet Lake

Mobile

Workstation

A0652

20

10th Generation Intel® Core™ Processor Family

Intel® Pentium® Gold Processor Family

Intel® Celeron® Processor Family

Intel® Xeon® W processor family

Comet Lake

Desktop Workstation

A0653

22

10th Generation Intel® Core™ Processor Family

Intel® Xeon® W processor family

Comet Lake

Desktop Workstation

A0655

22

10th Generation Intel® Core™ Processor Family

Intel® Xeon® W processor family

Comet Lake

Mobile

Desktop

A0660

A0661

80

1. 11th Generation Intel® Core™ Processor Family

2. Intel® Xeon® E-2300 processor family        

3. Intel® Xeon® W-1300 processor family

Rocket Lake

Tatlow

1. Desktop

2. Server

3. Workstation



A0671

02


Recommendation:

Intel recommends that users of affected Intel® Processors update to the latest firmware provided by the system manufacturer that addresses this issue.

Intel has released microcode update for the affected products that are currently supported on the public github repository.

Please see details below on access to the microcode:

Public Github:  https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files.

The microcode patch can be OS loaded.

 

Acknowledgements:

This issue was discovered internally by Intel employees. Intel would like to thank Ezra Caltum 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 History

Revision Date Description
1.0 08/13/2024 Initial Release
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All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.

Intel products and services described 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.

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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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