CVE-2017-16837 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://sourceforge.net/p/tboot/code/ci/521c58e51eb5be105a29983742850e72c44ed80e/ https://www.usenix.org/conference/usenixsecurity18/presentation/han

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8