Bug 2361464 (CVE-2023-20585)

Summary: CVE-2023-20585 kernel-core: hw: amd: AMD-SN-3016: IOMMU Write Buffer Vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, rhel-process-autobot, security-response-team, vkumar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in hw. Insufficient checks of the RMP on host buffer access in the Input-Output Memory Management Unit (IOMMU) allows an attacker with privileges and a compromised hypervisor to trigger an out-of-bounds condition without RMP checks. This issue results in the potential loss of guest integrity.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2026-04-14   

Description OSIDB Bzimport 2025-04-21 15:32:04 UTC
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 guest integrity.