CVE-2023-20584

Aug. 13, 2024, 5:15 p.m.

Tags

psirt@amd.com
2024-08-13
CVE-2023-20584

CVSS Score

5.3 / 10

Product(s) Impacted

AMD Secure Encrypted Virtualization (SEV-SNP) technology

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.

Weaknesses

Date

Published: Aug. 13, 2024, 5:15 p.m.

Last Modified: Aug. 13, 2024, 5:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

psirt@amd.com

CVSS Data

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

Base Score
5.3
Exploitability Score
0.8
Impact Score
4.0
Base Severity
MEDIUM
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
psirt@amd.com