PT-2021-8202 · Amd+1 · Amd Secure Processor+2

Shawn Hoffman · Published 2021-11-16 · Updated 2024-12-09 · CVE-2021-26335

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions AMD Platform Security Processor (affected versions not specified)

Description The issue is related to improper input and range checking in the AMD Secure Processor (ASP) boot loader image header. This may allow an attacker to use attacker-controlled values prior to signature validation, potentially resulting in arbitrary code execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2024-11257

CVE-2021-26335

Affected Products

Amd Platform Security Processor

Amd Secure Processor

Red Os

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-26335 · Security Note
• https://bdu.fstec.ru/vul/2024-11257 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26335 · Vendor Advisory
• https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-linux-firmware-cve-2020-12954-cve-2021-0146-cve-2021-26335-cve-2021-26334 · Note
• https://amd.com/en/corporate/product-security/bulletin/amd-sb-1027 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-linux-firmware-cve-2020-12954-cve-2021-0146-cve-2021-26335-cve-2021-26334 · Note
• https://amd.com/en/resources/product-security/bulletin/amd-sb-1021.html · Note
• https://t.me/cvenotify/23492 · Telegram Post