CVE-2023-3674

Keylime: attestation failure when the quote's signature does not validate

LOW
2.8
CVSS Score
Published: July 19, 2023 at 06:25 PM UTC
Updated: June 17, 2026 at 06:14 AM UTC
2 products affected across 2 vendorsFedoraKeylime

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Severity
LOW2.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A flaw was found in the keylime attestation verifier, which fails to flag a device's submitted TPM quote as faulty when the quote's signature does not validate for some reason. Instead, it will only emit an error in the log without flagging the device as untrusted.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.2.5
Affected range stops below 7.2.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1283NVD-CWE-Other

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