CVE-2021-46756

State: Published
Severity: 9.1 Critical
Published: May 9, 2023
Updated: Jan 28, 2025
Reserved: Mar 31, 2022

Description

Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of integrity.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4AMD	various Affected
Ryzen™ 2000 Series Desktop Processors “Pinnacle Ridge”AMD	various Affected
Ryzen™ 3000 Series Desktop Processors “Matisse” AM4AMD	various Affected
AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4AMD	various Affected
Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4AMD	Various Affected
2nd Gen AMD Ryzen™ Threadripper™ Processors “Colfax”AMD	various Affected
3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTAMD	variousAffected
Ryzen™ Threadripper™ PRO Processors “Castle Peak” WSAMD	various Affected
Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULPAMD	various Affected
Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”AMD	various Affected
Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5AMD	various Affected
Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”AMD	various Affected
Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”AMD	various Affected
Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”AMD	various Affected
Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”AMD	various Affected
1st Gen AMD EPYC™ ProcessorsAMD	various Affected
2nd Gen AMD EPYC™ ProcessorsAMD	various Affected
3rd Gen AMD EPYC™ ProcessorsAMD	various Affected

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001vendor-advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001vendor-advisory

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