Description
An improper input validation vulnerability in go-attestation before 0.3.3 allows local users to provide a maliciously-formed Quote over no/some PCRs, causing AKPublic.Verify to succeed despite the inconsistency. Subsequent use of the same set of PCR values in Eventlog.Verify lacks the authentication performed by quote verification, meaning a local attacker could couple this vulnerability with a maliciously-crafted TCG log in Eventlog.Verify to spoof events in the TCG log, hence defeating remotely-attested measured-boot. We recommend upgrading to Version 0.4.0 or above.
References (1)
Core 1
Core References
Third Party Advisory x_refsource_misc
https://github.com/google/go-attestation/security/advisories/GHSA-99cg-575x-774p
Scores
CVSS v3
4.0
EPSS
0.0010
EPSS Percentile
0.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (2)
google/go-attestation
< 0.3.3
google/go-attestation
0 - 0.4.0Go
Published
Feb 04, 2022
Tracked Since
Feb 18, 2026