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CVE-2021-26393

hw: amd: Insufficient memory cleanup in ASP Trusted Execution Environment (TEE) may poison process contents

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Severity

Moderate

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · November 8, 2022

Updated · November 22, 2025

Description

A flaw was found in hw. Insufficient memory cleanup in the AMD Secure Processor (ASP) Trusted Execution Environment (TEE) may allow an authenticated attacker with privileges to generate a valid signed TA and potentially poison the contents of the process memory with attacker-controlled data, resulting in a loss of confidentiality.

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

Please contact AMD for more updates on this flaw.

CVSS / CWE

CVSS 3.1 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

CWE not specified