// For flags

CVE-2023-20584

kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
High
Authentication
Multiple
Confidentiality
None
Integrity
Complete
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2022-10-27 CVE Reserved
  • 2024-08-13 CVE Published
  • 2024-08-14 EPSS Updated
  • 2024-11-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Alma
Search vendor "Alma"
Linux
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*-
Affected
Redhat
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Enterprise Linux
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*-
Affected
Redhat
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Rhel Aus
Search vendor "Redhat" for product "Rhel Aus"
*-
Affected
Redhat
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Rhel E4s
Search vendor "Redhat" for product "Rhel E4s"
*-
Affected
Redhat
Search vendor "Redhat"
Rhel Eus
Search vendor "Redhat" for product "Rhel Eus"
*-
Affected
Redhat
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Rhel Tus
Search vendor "Redhat" for product "Rhel Tus"
*-
Affected