CVE-2023-20591

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory amd.com
Affected: AMD AMD EPYC™ 7003 Series Processors
Affected: AMD AMD EPYC™ 9004 Series Processors
Affected: AMD AMD EPYC™ Embedded 7003 Series Processors
Affected: AMD AMD EPYC™ Embedded 9003 Series Processors
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2023-20591?
CVE-2023-20591 has been scored as a medium severity vulnerability.
How to fix CVE-2023-20591?
To fix CVE-2023-20591, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-20591 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-20591 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20591?
CVE-2023-20591 affects AMD AMD EPYC™ 7003 Series Processors, AMD AMD EPYC™ 9004 Series Processors, AMD AMD EPYC™ Embedded 7003 Series Processors, AMD AMD EPYC™ Embedded 9003 Series Processors.
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