CVE-2024-29039
This vulnerability allows attackers to manipulate tpm2_checkquote outputs by altering the TPML_PCR_SELECTION in the PCR input file.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-807
- Affected
- tpm2-tools project/tpm2-tools
- Source
- security-advisories@github.com
References
- https://github.com/tpm2-software/tpm2-tools/releases/tag/5.7Release Notes
- https://github.com/tpm2-software/tpm2-tools/security/advisories/GHSA-8rjm-5f5f-h4q6Exploit, Mitigation, Vendor Advisory
- https://github.com/tpm2-software/tpm2-tools/releases/tag/5.7Release Notes
- https://github.com/tpm2-software/tpm2-tools/security/advisories/GHSA-8rjm-5f5f-h4q6Exploit, Mitigation, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EFR7SVEWCOXORHPCLLGXEMHFMIGG2MFE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GI4JFEZBKQQUPJ4RWK6IHEWXAFCEJDPI/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.