SB2019111318 - Information disclosure in Microsoft Trusted Platform Module (TPM)
Published: November 13, 2019
Security Bulletin ID
SB2019111318
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2019-16863)
CWE-ID: CWE-310 - Cryptographic Issues
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to bypass certain security restrictions.
The vulnerability exists in certain Trusted Platform Module (TPM) chipsets due to weakens key confidentiality protection for a specific algorithm (ECDSA). An authenticated user with physical access can decrypt encrypted data on the target system.
Remediation
Install update from vendor's website.