SB2021011231 - Information disclosure in Microsoft TPM Device Driver



SB2021011231 - Information disclosure in Microsoft TPM Device Driver

Published: January 12, 2021 Updated: August 18, 2021

Security Bulletin ID SB2021011231
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Information disclosure (CVE-ID: CVE-2021-1656)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear


The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in TPM Device Driver. A local user can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.