AMD EPYC 7003 Processors IOMMU initialization

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in AMD EPYC 7003 Processors, EPYC 9004 Processors, EPYC Embedded 7003 Processors and EPYC Embedded 9003 Processors. It has been declared as problematic. This affects an unknown function of the component IOMMU. The manipulation results in initialization. This vulnerability is reported as CVE-2023-20591. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in AMD EPYC 7003 Processors, EPYC 9004 Processors, EPYC Embedded 7003 Processors and EPYC Embedded 9003 Processors (version now known). Affected is some unknown processing of the component IOMMU. The manipulation with an unknown input leads to a initialization vulnerability. CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory, potentially resulting in loss of confidentiality, integrity, and availability.

The advisory is shared for download at amd.com. This vulnerability is traded as CVE-2023-20591 since 10/27/2022. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (AMD): 🔍

CVSSv2info

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

Exploitinginfo

Class: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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 🔍
08/13/2024 +0 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20591 (🔍)
GCVE (CVE): GCVE-0-2023-20591
GCVE (VulDB): GCVE-100-274392

Entryinfo

Created: 08/13/2024 19:15
Changes: 08/13/2024 19:15 (61)
Complete: 🔍
Cache ID: 216::103

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