CVE-2022-42271: NVIDIA DGX A100 Server and DGX Station A100 - December 2022

Details

This section provides a summary of potential vulnerabilities that this security update addresses and their impact. Descriptions use CWE™, and base scores and vectors use CVSS v3.1 standards.

CVE ID

Description

Base Score

Vector

CVE‑2022‑42271

NVIDIA baseboard management controller (BMC) contains a vulnerability in the Intelligent Platform Management Interface (IPMI) handler, where an attacker with the required privileges can cause a buffer overflow, which may lead to denial of service or code execution.

8.4

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

CVE‑2022‑42272

NVIDIA BMC contains a vulnerability in the IPMI handler, where an attacker with the required privileges can cause a buffer overflow, which may lead to code execution, denial of service, or escalation of privileges.

8.1

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE‑2022‑42273

NVIDIA BMC contains a vulnerability in libwebsocket, where an attacker with the required privileges can cause a buffer overflow, which may lead to denial of service or code execution.

8.1

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

CVE‑2022‑42274

NVIDIA BMC contains a vulnerability in the IPMI handler, where an attacker with the required privileges can cause a buffer overflow, which may lead to denial of service or code execution.

7.8

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

CVE‑2022‑42275

NVIDIA BMC contains a vulnerability in the IPMI handler, where an unauthenticated host is allowed to write to a host SPI flash, bypassing secure boot protections. An exploit of this vulnerability may lead to a loss of integrity or denial of service.

7.7

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

CVE‑2022‑42276

NVIDIA DGX A100 server contains a vulnerability in SBIOS in the SmiFlash, where a local user with elevated privileges can read, write, and erase the flash, which may lead to code execution, escalation of privileges, denial of service, or information disclosure. The scope of the impact can extend to other components.

7.5

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

CVE‑2022‑42277

NVIDIA DGX Station contains a vulnerability in SBIOS in the SmiFlash, where a local user with elevated privileges can read, write, and erase the flash, which may lead to code execution, escalation of privileges, denial of service, or information disclosure. The scope of the impact can extend to other components.

7.5

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

CVE‑2022‑42278

NVIDIA BMC contains a vulnerability in the SPX REST API, where an attacker with the required privileges can read and write to arbitrary locations within the memory context of the IPMI server process, which may lead to code execution, denial of service, information disclosure, or data tampering.

7.2

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

CVE‑2022‑42279

NVIDIA BMC contains a vulnerability in the SPX REST API, where an attacker with the required privileges can inject arbitrary shell commands, which may lead to code execution, denial of service, information disclosure, or data tampering.

7.2

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

CVE‑2022‑42289

NVIDIA BMC contains a vulnerability in the SPX REST API, where an attacker with the required privileges can inject arbitrary shell commands, which may lead to code execution, denial of service, information disclosure, or data tampering.

7.2

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

CVE‑2022‑42290

NVIDIA BMC contains a vulnerability in the SPX REST API, where an attacker with the required privileges can inject arbitrary shell commands, which may lead to code execution, denial of service, information disclosure, or data tampering.

7.2

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

CVE‑2022‑42280

NVIDIA BMC contains a vulnerability in the SPX REST authorization handler, where an unauthorized attacker can exploit a path traversal, which may lead to escalation of privileges.

7.1

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

CVE‑2022‑42281

NVIDIA DGX A100 contains a vulnerability in SBIOS in the FsRecovery, which may allow a highly privileged local attacker to cause an out-of-bounds write, which may lead to code execution, denial of service, loss of data integrity, or information disclosure.

6.7

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

CVE‑2022‑42282

NVIDIA BMC contains a vulnerability in the SPX REST API, where an attacker with the required privileges can access arbitrary files, which may lead to information disclosure.

6.5

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

CVE‑2022‑42283

NVIDIA BMC contains a vulnerability in the IPMI handler, where an attacker with the required privileges can cause a buffer overflow, which may lead to denial of service or code execution.

6.4

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

CVE‑2022‑42284

NVIDIA BMC stores user passwords in an obfuscated form in a database accessible by the host, which may lead to exposure of user credentials.

6.2

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

CVE‑2022‑42285

DGX A100 SBIOS contains a vulnerability in the Pre-EFI Initialization (PEI) phase, where a privileged user can disable SPI flash protection, which may lead to denial of service, escalation of privileges, or data tampering.

6.0

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

CVE‑2022‑42286

DGX A100 SBIOS contains a vulnerability in Bds, which may lead to code execution, denial of service, or escalation of privileges.

6.0

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

CVE‑2022‑42287

NVIDIA BMC contains a vulnerability in the IPMI handler, where an attacker can upload and download arbitrary files under certain circumstances, which may lead to denial of service, escalation of privileges, information disclosure, or data tampering.

6.0

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

CVE‑2022‑42288

NVIDIA BMC contains a vulnerability in the IPMI handler, where an unauthorized attacker can use certain oracles to guess a valid BMC username, which may lead to information disclosure.

5.3

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

The NVIDIA risk assessment is based on an average of risk across a diverse set of installed systems and may not represent the true risk to your local installation. NVIDIA recommends consulting a security or IT professional to evaluate the risk to your specific configuration.

Security Updates

The following table lists the NVIDIA systems affected, firmware versions affected, and the updated version that includes this security update. To protect your system, download and install this firmware update through the NVIDIA Enterprise Support Portal.

CVE IDs Addressed

Hardware Platform

System

Affected Versions

Updated Version

CVE‑2022‑42276
CVE‑2022‑42281
CVE‑2022‑42285
CVE‑2022‑42286

NVIDIA DGX servers

DGX A100

All SBIOS firmware versions prior to 1.18

SBIOS Firmware 1.18

CVE‑2022‑42271
CVE‑2022‑42272
CVE‑2022‑42273
CVE‑2022‑42274
CVE‑2022‑42275
CVE‑2022‑42278
CVE‑2022‑42279
CVE‑2022‑42280
CVE‑2022‑42282
CVE‑2022‑42283
CVE‑2022‑42284
CVE‑2022‑42287
CVE‑2022‑42288
CVE‑2022‑42289
CVE‑2022‑42290

NVIDIA DGX servers

DGX A100

All BMC firmware versions prior to 00.19.07

BMC Firmware 00.19.07

CVE‑2022‑42277

NVIDIA DGX servers

DGX Station A100

All SBIOS firmware versions prior to 10.16

SBIOS Firmware 10.16

Notes:

• To get the updated firmware and SBIOS version listed in the table above, upgrade to the NVIDIA DGX A100 firmware container 22.12.1, or NVIDIA DGX Station A100 firmware container 22.2.1. Firmware updates are available through the NVIDIA Enterprise Support Portal.

• See Security Updates for the version to install.

• NVIDIA recommends that all BMC ports be restricted to a dedicated management network with firewall protection. If remote access to the BMC is required, such as for a system hosted at a co-location provider, the BMC should be accessed through a secure method that provides isolation from the Internet, such as through a VPN server.

Acknowledgements

All the vulnerabilities addressed in this bulletin were discovered by the NVIDIA Offensive Security Research (OSR) team.

Additional Information

AMI has reported potential security vulnerabilities in some AMI MegaRAC SP-X Baseboard Management Controllers that may allow user enumeration, unauthorized access, or arbitrary code execution. The NVIDIA DGX A100 BMC is affected by the following AMI vulnerabilities and plans to release an update to address them in May 2023.

• CVE‑2022‑40259: AMI MegaRAC Redfish Arbitrary Code Execution
• CVE‑2022‑40242: MegaRAC Default Credentials Vulnerability
• CVE‑2022‑2827: AMI MegaRAC User Enumeration Vulnerability

The NVIDIA DGX-1, DGX-2, DGX Station A100 and DGX Station systems are not vulnerable to these CVEs.

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Revision History

Revision

Date

Description

2.0

January 10, 2023

Added CVE IDs omitted from the Security Updates table

1.0

December 19, 2022

Initial release

Support

If you have any questions about this security bulletin, contact NVIDIA Support.

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