CVE-2021-26367

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

Tags

psirt@amd.com
2024-08-13
CVE-2021-26367

CVSS Score

5.7 / 10

Product(s) Impacted

AMD Processors

Description

A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.

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

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score
5.7
Exploitability Score
0.5
Impact Score
5.2
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:U/C:N/I:H/A:H

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html
psirt@amd.com
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html
psirt@amd.com