CVE-2020-12926

Published Nov 12, 2020

Last updated 4 years ago

Overview

Description
The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.
Source
psirt@amd.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
6.4
Impact score
5.9
Exploitability score
0.5
Vector string
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
4.4
Impact score
6.4
Exploitability score
3.4
Vector string
AV:L/AC:M/Au:N/C:P/I:P/A:P

Weaknesses

nvd@nist.gov
CWE-367
psirt@amd.com
CWE-367

Social media

Hype score
Not currently trending

Configurations