Description
An issue was discovered that affects all producers of BIOS firmware who make a certain realistic interpretation of an obscure portion of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2.0 specification. An abnormal case is not handled properly by this firmware while S3 sleep and can clear TPM 2.0. It allows local users to overwrite static PCRs of TPM and neutralize the security features of it, such as seal/unseal and remote attestation.
Exploits (1)
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/105203
Third Party Advisory x_refsource_misc
https://www.usenix.org/conference/usenixsecurity18/presentation/han
Scores
CVSS v3
7.1
EPSS
0.0022
EPSS Percentile
44.7%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Details
Status
published
Products (1)
trustedcomputinggroup/trusted_platform_module
2.0
Published
Aug 17, 2018
Tracked Since
Feb 18, 2026