CVE-2023-20584

Description

IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Vendor Advisory amd.com

Affected: AMD AMD EPYC™ 7003 Processors

Affected: AMD AMD EPYC™ 9004 Processors

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-2023-20584?: CVE-2023-20584 has been scored as a medium severity vulnerability.
How to fix CVE-2023-20584?: To fix CVE-2023-20584, 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-2023-20584 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-20584 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-2023-20584?: CVE-2023-20584 affects AMD AMD EPYC™ 7003 Processors, AMD AMD EPYC™ 9004 Processors.

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