AMD EPYC 9004 Processors ASP cleanup

CVSS Meta Temp Score
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CTI Interest Score
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1.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in AMD 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 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 issue affects some unknown processing of the component ASP. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2023-20518. The attack can only be executed locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in AMD 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 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. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component ASP. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-459. The product does not properly "clean up" and remove temporary or supporting resources after they have been used. As an impact it is known to affect confidentiality. The summary by CVE is:

Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality.

It is possible to read the advisory at amd.com. This vulnerability is known as CVE-2023-20518 since 10/27/2022. The exploitation appears to be difficult. Attacking locally is a requirement. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 1.9
VulDB Meta Temp Score: 1.9

VulDB Base Score: 1.9
VulDB Temp Score: 1.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 1.9
CNA Vector (AMD): 🔍

CVSSv2info

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

Exploitinginfo

Class: Cleanup
CWE: CWE-459
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

10/27/2022 🔍
08/13/2024 +656 days 🔍
08/13/2024 +0 days 🔍
11/06/2024 +85 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20518 (🔍)
GCVE (CVE): GCVE-0-2023-20518
GCVE (VulDB): GCVE-100-274399

Entryinfo

Created: 08/13/2024 19:18
Updated: 11/06/2024 06:18
Changes: 08/13/2024 19:18 (60), 11/06/2024 06:18 (2)
Complete: 🔍
Cache ID: 216::103

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