CVE-2017-16837

Current Description

Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.

Basic Data

Published	November 16, 2017
Last Modified	August 17, 2018
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-20
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 2 - Access Vector	LOCAL
CVSS 2 - Access Complexity	LOW
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	PARTIAL
CVSS 2 - Availability Impact	PARTIAL
CVSS 2 - Base Score	4.6
Severity	MEDIUM
Exploitability Score	3.9
Impact Score	6.4
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3 - Attack Vector	LOCAL
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	LOW
CVSS 3 - User Interaction	NONE
CVSS 3 - Scope	UNCHANGED
CVSS 3 - Confidentiality Impact	HIGH
CVSS 3 - Integrity Impact	HIGH
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	7.8
CVSS 3 - Base Severity	HIGH
Exploitability Score	1.8
Base Severity	HIGH

Configurations

Vulnerable Software List

Vendor	Product	Versions
Trusted Boot Project	Trusted Boot	1.9.6

References