CVE-2021-0153: INTEL-SA-00601

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2022.1 IPU - BIOS Advisory

**Summary: **

Potential security vulnerabilities in the BIOS firmware or BIOS authenticated code module for some Intel® Processors may allow escalation of privilege or information disclosure. Intel is releasing BIOS updates to mitigate these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2021-0154

Description: Improper input validation in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 8.2 High

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

CVEID: CVE-2021-0153

Description: Out-of-bounds write in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 8.2 High

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

CVEID: CVE-2021-33123

Description: Improper access control in the BIOS authenticated code module for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 8.2 High

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

CVEID: CVE-2021-0190

Description: Uncaught exception in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 8.2 High

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

CVEID: CVE-2021-33122

Description: Insufficient control flow management in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege 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:N/I:H/A:H

CVEID: CVE-2021-0189

Description: Use of out-of-range pointer offset in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 7.5 High

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

CVEID: CVE-2021-33124

Description: Out-of-bounds write in the BIOS authenticated code module for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 7.5 High

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

CVEID: CVE-2021-33103

Description: Unintended intermediary in the BIOS authenticated code module for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 7.5 High

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

CVEID: CVE-2021-0159

Description: Improper input validation in the BIOS authenticated code module for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 7.4 High

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

CVEID: CVE-2021-0188

Description: Return of pointer value outside of expected range in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

CVSS Base Score: 5.3 Medium

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

CVEID: CVE-2021-0155

Description: Unchecked return value in the BIOS firmware for some Intel® Processors may allow a privileged user to potentially enable information disclosure via local access.

CVSS Base Score: 4.4 Medium

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

Affected Products:

Product Collection

Vertical Segment

CPU ID

Platform ID

CVE ID

2nd Generation Intel® Xeon® Scalable Processors

Server

50657

BF

CVE-2021-0159, CVE-2021-0189, CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor D Family

Server

50654

B7

CVE-2021-33123, CVE-2021-33124

Rocket Lake Xeon

Server, Workstation

A0671

02

CVE-2021-33103, CVE-2021-33122, CVE-2021-33123, CVE-2021-33124

3rd Generation Intel® Xeon® Scalable Processor Family

Server

5065B

5065B

CVE-2021-0159,

CVE-2021-33123, CVE-2021-33124

Intel® Core™ Processors with Intel® Hybrid Technology

Mobile

806A1

10

CVE-2021-33122

10th Generation Intel® Core™ Processor Family

Mobile

706E5

80

Intel® Pentium® Silver N6000 Processor Family, Intel® Celeron® N4000 and N5000 Processor Families

Client

906C0

01

9th Generation Intel® Core Processor Family

Client

A0671

02

CVE-2021-33103, CVE-2021-33122, CVE-2021-33123, CVE-2021-33124

10th Generation Intel® Core™ Processors

Client

A0653

A0655

01

22

CVE-2021-33103, CVE-2021-33122, CVE-2021-33123, CVE-2021-33124

10th Generation Intel® Core™ Processors

Client

806EC

A0652

A0653

A0655

A0655

A0660

A0661

94

20

22

01

22

80

80

8th Generation Intel® Core™ Processors

Mobile

806EB 806EC

D0

94

CVE-2021-33123, CVE-2021-33124

8th Generation Intel® Core™ Processors

Mobile Desktop

906EA

906EB

906ED

02

22

7th Generation Intel® Core™ Processors

Client

806E9

806EA

906E9

806E9

806EC

C0

C0

2A

10

94

Intel® Core™ X-series Processors

Desktop

906E9

2A

CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor W Family

Workstation

50654

B7

Intel® Xeon® Processor W Family

Workstation

50657

BF

Intel® Xeon® Processor E Family

Server

Workstation

906E, 906ED

22

CVE-2021-0154,

CVE-2021-0189,

CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor E3 v6 Family

Server

Workstation

906E9

2A

CVE-2021-0154,

CVE-2021-0188, CVE-2021-0189,

CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor E3 v5 Family

Server

Workstation

506E3

36

Intel® Xeon® Processor E7 v4 Family

Workstation

406F1

EF

CVE-2021-0154,

CVE-2021-0155, CVE-2021-0189,

CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor D Family

Server

50665

10

CVE-2021-0154,

CVE-2021-0155, CVE-2021-33123, CVE-2021-33124

Intel® Xeon® Processor D Family

Server

50662

10

Intel® Xeon® Processor E5 v4 Family

Intel® Core™ X-series Processors

Server

406F1

EF

CVE-2021-0153, CVE-2021-0154,

CVE-2021-0155, CVE-2021-0190,

CVE-2021-33123, CVE-2021-33124

11th Generation Intel® Core ProcessorFamily

Client

806C1

80

CVE-2021-33103,

CVE-2021-33122

Recommendations:

Intel recommends that users of listed Intel® Processors update to the latest versions provided by the system manufacturer that addresses these issues.

Acknowledgements:

The following issues were found internally by Intel employees; CVE-2021-0153, CVE-2021-0154, CVE-2021-0155, CVE-2021-0159, CVE-2021-0188, CVE-2021-0189, CVE-2021-0190, CVE-2021-33103, and CVE-2021-33122. Intel would like to thank Jorge E. Gonzalez Diaz and Nicholas Armour.

Intel would like to thank Hugo Magalhaes from Oracle (CVE-2021-33123, CVE-2021-33124) for reporting these issues.

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

05/10/2022

Initial Release

1.1

05/11/2022

Removed incorrect CVE number

1.2

05/13/2022

Added 11th Generation Intel® Core ProcessorFamily to Affected Products.

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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 product or component 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 2022

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