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

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

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