CVE-2024-29039: tpm2-tools — Exploit & Fix

Description

tpm2 is the source repository for the Trusted Platform Module (TPM2.0) tools. This vulnerability allows attackers to manipulate tpm2_checkquote outputs by altering the TPML_PCR_SELECTION in the PCR input file. As a result, digest values are incorrectly mapped to PCR slots and banks, providing a misleading picture of the TPM state. This issue has been patched in version 5.7.

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CVSS v3.1 Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-807 CWE-807

Affected Products

Vendor	Product	Versions
tpm2-tools_project	tpm2-tools	< 5.7

References

Frequently Asked Questions

What is CVE-2024-29039? +

tpm2 is the source repository for the Trusted Platform Module (TPM2.0) tools. This vulnerability allows attackers to manipulate tpm2_checkquote outputs by altering the TPML_PCR_SELECTION in the PCR input file. As a result, digest values are incorrectly mapped to PCR slots and banks, providing a misleading picture of the TPM state. This issue has been patched in version 5.7. It has a CVSS v3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2024-29039? +

CVE-2024-29039 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-29039? +

CVE-2024-29039 affects products from tpm2-tools_project, specifically: tpm2-tools. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-29039? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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