CVE-2024-29040 (GCVE-0-2024-29040)

Vulnerability from cvelistv5 – Published: 2024-06-28 21:02 – Updated: 2025-11-04 17:19
VLAI
Title
Fapi Verify Quote: Does not detect if quote was not generated by TPM
Summary
This repository hosts source code implementing the Trusted Computing Group's (TCG) TPM2 Software Stack (TSS). The JSON Quote Info returned by Fapi_Quote has to be deserialized by Fapi_VerifyQuote to the TPM Structure `TPMS_ATTEST`. For the field `TPM2_GENERATED magic` of this structure any number can be used in the JSON structure. The verifier can receive a state which does not represent the actual, possibly malicious state of the device under test. The malicious device might get access to data it shouldn't, or can use services it shouldn't be able to. This issue has been patched in version 4.1.0.
Severity
4.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
tpm2-software tpm2-tss Affected: < 4.1.0
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            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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            "version": "3.1"
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          "url": "https://github.com/tpm2-software/tpm2-tss/releases/tag/4.1.0"
        }
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      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Fapi Verify Quote: Does not detect if quote was not generated by TPM"
    }
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
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    "datePublished": "2024-06-28T21:02:04.076Z",
    "dateReserved": "2024-03-14T16:59:47.614Z",
    "dateUpdated": "2025-11-04T17:19:50.283Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-05-25",
      "epss": "0.00071",
      "percentile": "0.21646"
    },
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      "lastModified": "2024-11-21T09:07:25.880",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.