CVE-2024-29040 — Fapi Verify Quote: Does not detect if quote was not generated by TPM

Affected: tpm2-software tpm2-tss, tpm2_software_stack_project tpm2_software_stack

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.

USN-6796-1 — tpm2-tss vulnerabilities

Affected: Ubuntu:20.04:LTS: tpm2-tss, Ubuntu:22.04:LTS: tpm2-tss, Ubuntu:24.04:LTS: tpm2-tss

Fergus Dall discovered that TPM2 Software Stack did not properly handle layer arrays. An attacker could possibly use this issue to cause TPM2 Software Stack to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-22745)

Jurgen Repp and Andreas Fuchs discovered that TPM2 Software Stack did not validate the quote data after deserialization. An attacker could generate an arbitrary quote and cause TPM2 Software Stack to have unknown behavior. (CVE-2024-29040)

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CVE-2024-29040 — Fapi Verify Quote: Does not detect if quote was not generated by TPM

USN-6796-1 — tpm2-tss vulnerabilities