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.
Published 2022-02-04 23:15:13
Updated 2022-02-09 18:14:03
Source Google Inc.
View at NVD,   CVE.org
Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2022-0317

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-0317

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:L/AC:L/Au:N/C:N/I:P/A:N
3.9
2.9
NIST
4.0
MEDIUM CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
2.5
1.4
Google Inc.
3.3
LOW CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
1.8
1.4
NIST

CWE ids for CVE-2022-0317

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by:
    • cve-coordination@google.com (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2022-0317

Products affected by CVE-2022-0317

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