CVE-2023-20584

MEDIUM

AMD EPYC 8024/8124/8224/8324/8434/8534/9734/9754S Firmware < genoaPI_1.0.0.b - IOMMU DTE Fault Bypass

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0001
EPSS Percentile 3.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (50)
amd/epyc_7203_firmware < milanpi_1.0.0.b
amd/epyc_7203p_firmware < milanpi_1.0.0.b
amd/epyc_72f3_firmware < milanpi_1.0.0.b
amd/epyc_7303_firmware < milanpi_1.0.0.b
amd/epyc_7303p_firmware < milanpi_1.0.0.b
amd/epyc_7313_firmware < milanpi_1.0.0.b
amd/epyc_7313p_firmware < milanpi_1.0.0.b
amd/epyc_7343_firmware < milanpi_1.0.0.b
amd/epyc_7373x_firmware < milanpi_1.0.0.b
amd/epyc_73f3_firmware < milanpi_1.0.0.b
... and 40 more
Published Aug 13, 2024
Tracked Since Feb 18, 2026