AMD EPYC 7001 Processors Trusted Execution Environment stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in AMD EPYC 7001 Processors, EPYC 7002 Processors, EPYC 7003 Processors, EPYC 9004 Processors, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Athlon 3000 Desktop Processors with Radeon Graphics, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO 3000WX Processors, Ryzen Threadripper PRO 5000WX Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics, Ryzen 5000 Processors with Radeon Graphics, Ryzen 3000 Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, EPYC Embedded 3000 Processors, EPYC Embedded 7002 Processors, EPYC Embedded 7003 Processors, EPYC Embedded 9003 Processors, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded 7000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors and Ryzen Embedded V3000 Processors. Affected is an unknown function of the component Trusted Execution Environment. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2021-46746. The attack needs to be approached locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in AMD EPYC 7001 Processors, EPYC 7002 Processors, EPYC 7003 Processors, EPYC 9004 Processors, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Athlon 3000 Desktop Processors with Radeon Graphics, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO 3000WX Processors, Ryzen Threadripper PRO 5000WX Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics, Ryzen 5000 Processors with Radeon Graphics, Ryzen 3000 Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, EPYC Embedded 3000 Processors, EPYC Embedded 7002 Processors, EPYC Embedded 7003 Processors, EPYC Embedded 9003 Processors, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded 7000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors and Ryzen Embedded V3000 Processors. This affects an unknown code of the component Trusted Execution Environment. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Lack of stack protection exploit mechanisms in ASP Secure OS Trusted Execution Environment (TEE) may allow a privileged attacker with access to AMD signing keys to c006Frrupt the return address, causing a stack-based buffer overrun, potentially leading to a denial of service.

It is possible to read the advisory at amd.com. This vulnerability is uniquely identified as CVE-2021-46746 since 03/31/2022. The exploitability is told to be difficult. Attacking locally is a requirement. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.2
CNA Vector (AMD): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/31/2022 🔍
08/13/2024 +866 days 🔍
08/13/2024 +0 days 🔍
10/31/2024 +79 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-46746 (🔍)
GCVE (CVE): GCVE-0-2021-46746
GCVE (VulDB): GCVE-100-274383

Entryinfo

Created: 08/13/2024 19:07
Updated: 10/31/2024 16:15
Changes: 08/13/2024 19:07 (62), 10/31/2024 16:15 (1)
Complete: 🔍
Cache ID: 216::103

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