UBUNTU-CVE-2023-20584

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Source
https://ubuntu.com/security/CVE-2023-20584
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-20584.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-20584
Upstream
Downstream
Related
Published
2024-08-13T17:15:00Z
Modified
2025-07-18T16:54:17Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
  • 6.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

Affected packages

Ubuntu:24.04:LTS / amd64-microcode

Package

Name
amd64-microcode
Purl
pkg:deb/ubuntu/amd64-microcode@3.20250311.1ubuntu0.24.04.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.20250311.1ubuntu0.24.04.1

Affected versions

3.*

3.20230808.1.1ubuntu1
3.20231019.1ubuntu1
3.20231019.1ubuntu2
3.20231019.1ubuntu2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "amd64-microcode",
            "binary_version": "3.20250311.1ubuntu0.24.04.1"
        }
    ],
    "availability": "No subscription required"
}