PT-2023-12570 · Amd · Amd Secure Processor

Published 2023-05-09 · Updated 2023-05-22 · CVE-2021-46755

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

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

Description The issue is related to the failure to unmap certain SysHub mappings in error paths of the ASP bootloader, which may allow an attacker with a malicious bootloader to exhaust the SysHub resources, resulting in a potential denial of service.

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

Related Identifiers

CVE-2021-46755

Affected Products

Amd Secure Processor

References · 6

• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-46755 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46755 · Security Note
• https://t.me/cvenotify/50079 · Telegram Post
• https://t.me/cibsecurity/63695 · Telegram Post
• https://t.me/cvenotify/50914 · Telegram Post