What’s Vulnerable › Vulnerabilities

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

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-04 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• Google go-attestation: before 0.3.3 — fixed in 0.3.3

How to fix

Upgrade to a fixed version: Google go-attestation 0.3.3. Check the vendor advisory for mitigations.

References

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

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