CVE-2022-0317

Improper Input Validation in AKPublic.Verify in go-attestation

State: Published
Severity: 4.0 Medium
Published: Feb 4, 2022
Updated: Apr 21, 2025
Reserved: Jan 20, 2022

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.

Scores

CVSS	Score	Vector	Source
3.1	4.0 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	Google

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
go-attestationGoogle LLC	before 0.4.0Affected

References

https://github.com/google/go-attestation/security/advisories/GHSA-99cg-575x-774p

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