CVE-2022-0317 MEDIUM

CVE-2022-0317: Improper Input Validation in AKPublic.Verify in go-attestation

Vendor Google Llc
Product go-attestation
Weakness CWE-20 · Input validation
Published February 4, 2022
Last update April 21, 2025
View on NVD All CVEs

CVSS base score

4.0/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 4, 2022 CVE published
April 21, 2025 Record updated