PT-2023-12571 · Amd · Asp

Published 2023-05-09 · Updated 2023-05-22 · CVE-2021-46756

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ASP (AMD Secure Processor) bootloader (affected versions not specified)

Description The issue is related to insufficient validation of inputs in the SVC MAP USER STACK component of the ASP bootloader. This may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscalls to the bootloader, potentially resulting in a denial of service and loss of integrity.

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

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-46756

Affected Products

Asp

References · 7

• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 · Vendor Advisory
• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46756 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46756 · Vendor Advisory
• https://t.me/cibsecurity/63702 · Telegram Post
• https://t.me/cvenotify/50078 · Telegram Post
• https://t.me/cvenotify/50911 · Telegram Post