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CVE

CVE-2023-20584

IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an att

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.

MEDIUM · CVSS 5.3 EPSS 0.00015
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Affected Products & Versions

60
amd epyc 8024pn firmware< genoapi_1.0.0.b
amd epyc 8024p firmware< genoapi_1.0.0.b
amd epyc 8124pn firmware< genoapi_1.0.0.b
amd epyc 8124p firmware< genoapi_1.0.0.b
amd epyc 8224pn firmware< genoapi_1.0.0.b
amd epyc 8224p firmware< genoapi_1.0.0.b
amd epyc 8324pn firmware< genoapi_1.0.0.b
amd epyc 8324p firmware< genoapi_1.0.0.b

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · psirt@amd.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Aug 2024 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

5
rhsaRHSA-2024:7483Moderate
rhsaRHSA-2024:7484Moderate
rhsaRHSA-2024:7418Moderate
rhsaRHSA-2024:7481Moderate
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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