CVE-2021-0144

kernel: hw: Insecure default variable initialization for the Intel BSSA DFT feature

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · July 13, 2021

Updated · November 22, 2025

Description

A flaw was found in the Linux kernel. The Intel BIOS Shared SW Architecture (BSSA) Design for Test (DFT) feature may allow escalation of privilege in the customer build time configuration. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Statement

This issue is not in Red Hat supported software. Please contact your system manufacturer for more information and/or potential BIOS firmware update that addresses this issue.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CWE-1188 · Initialization of a Resource with an Insecure Default