CVE-2023-20585
Summary
| CVE | CVE-2023-20585 |
|---|---|
| State | PUBLISHED |
| Assigner | AMD |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-16 19:16:31 UTC |
| Updated | 2026-04-16 20:16:34 UTC |
| Description | Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity. |
Risk And Classification
Primary CVSS: v4.0 5.6 MEDIUM from [email protected]
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-788 | CWE-788 CWE-788 Access of Memory Location After End of Buffer
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 5.6 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 5.6 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
HighAttack Requirements
NonePrivileges Required
HighUser Interaction
NoneConfidentiality
NoneIntegrity
HighAvailability
NoneSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | AMD | AMD EPYC 7003 Series Processors | unaffected SEV FW 1.37.23 | Not specified |
| CNA | AMD | AMD EPYC 9004 Series Processors | unaffected SEV FW 1.37.31 | Not specified |
| CNA | AMD | AMD EPYC Embedded 7003 Series Processors | unaffected EmbMilanPI-SP3 1.0.0.B | Not specified |
| CNA | AMD | AMD EPYC Embedded 9004 Series Processors | unaffected EmbGenoaPI-1.0.0.A | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html | [email protected] | www.amd.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.