CVE-2018-6622

EUVD-2018-18369
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
Affected Products (NVD)
VendorProductVersion
trustedcomputinggrouptrusted_platform_module
2.0
𝑥
= Vulnerable software versions
References
http://www.securityfocus.com/bid/105203
https://www.usenix.org/conference/usenixsecurity18/presentation/han
http://www.securityfocus.com/bid/105203
https://www.usenix.org/conference/usenixsecurity18/presentation/han