SB2025072845 - Lenovo update for TPM 2.0 Reference code vulnerability
Published: July 28, 2025
Security Bulletin ID
SB2025072845
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2025-2884)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the CryptHmacSign helper function of TCG TPM2.0 Reference implementation. A local user can trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.