CVE-2021-46772

Published: Aug 13, 2024

Modified: Nov 5, 2024

PUBLISHED

CVSS v3.1

3.9

LOW

Description

Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the structure headers in SPI ROM causing an out of bounds memory read and write, potentially resulting in memory corruption or denial of service.

Vendor	Product	Versions
AMD	AMD EPYC™ 7002 Series Processors	unaffected `RomePI 1.0.0.E`
AMD	AMD EPYC™ 7003 Series Processors	unaffected `MilanPI 1.0.0.9`
AMD	AMD Ryzen™ 3000 Series Desktop Processors	affected `various`
AMD	AMD Ryzen™ 5000 Series Desktop Processors	unaffected `ComboAM4V2 1.2.0.A`
AMD	AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics	affected `ComboAM4V2 1.2.0.A`
AMD	AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ Threadripper™ 3000 Series Processors	affected `various`
AMD	AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors	unaffected `ChagallWSPI-sWRX8 1.0.0.6`
AMD	AMD Ryzen™ Threadripper™ PRO 5000WX Processors	unaffected `ChagallWSPI-sWRX8 1.0.0.6`
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	affected `various`
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	affected `various`
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.E`
AMD	AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics	unaffected `MendocinoPI-FT6 1.0.0.3`
AMD	AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics	unaffected `RembrandtPI-FP7 1.0.0.7`
AMD	AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics	unaffected `RembrandtPI-FP7 1.0.0.7`
AMD	AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.E`
AMD	AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.E`
AMD	AMD EPYC™ Embedded 7002 Series Processors	unaffected `EmbRomePI-SP3 1.0.0.8`
AMD	AMD EPYC™ Embedded 7003 Series Processors	unaffected `EmbMilanPI-SP3 1.0.0.5`
AMD	AMD Ryzen™ Embedded R1000 Series Processors	affected `various`
AMD	AMD Ryzen™ Embedded R2000 Series Processors	affected `various`
AMD	AMD Ryzen™ Embedded 5000 Series Processors	affected `various`
AMD	AMD Ryzen™ Embedded V1000 Series Processors	affected `various`
AMD	AMD Ryzen™ Embedded V2000 Series Processors	affected `various`
AMD	AMD Ryzen™ Embedded V3000 Series Processors	unaffected `EmbeddedPI-FP7r2 1.0.0.4`

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

Low

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html

vendor-advisory

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html

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CVE-2021-46772

Description

Affected Products

CVSS v3.1 Details

References