CVE-2022-0317

Improper Input Validation in AKPublic.Verify in go-attestation

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.

Category

4.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Third-Party Advisory github.com
Affected: Google LLC go-attestation
Published at:
Updated at:

References

Link Tags
https://github.com/google/go-attestation/security/advisories/GHSA-99cg-575x-774p third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-0317?
CVE-2022-0317 has been scored as a medium severity vulnerability.
How to fix CVE-2022-0317?
To fix CVE-2022-0317, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-0317 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-0317 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-0317?
CVE-2022-0317 affects Google LLC go-attestation.
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