CVE-2024-29040

Fapi Verify Quote: Does not detect if quote was not generated by TPM

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Affected: tpm2-software tpm2-tss
Published at:
Updated at:

References

Link Tags
https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-837m-jw3m-h9p6
https://github.com/tpm2-software/tpm2-tss/releases/tag/4.1.0

Frequently Asked Questions

What is the severity of CVE-2024-29040?
CVE-2024-29040 has been scored as a medium severity vulnerability.
How to fix CVE-2024-29040?
To fix CVE-2024-29040, 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-2024-29040 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-29040 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-2024-29040?
CVE-2024-29040 affects tpm2-software tpm2-tss.
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