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Amazon Linux 2023: CVE-2024-29039: Medium priority package update for tpm2-tools

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Amazon Linux 2023: CVE-2024-29039: Medium priority package update for tpm2-tools

Severity
2
CVSS
(AV:L/AC:L/Au:S/C:N/I:P/A:N)
Published
04/30/2024
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

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. A flaw was found in tpm2-tools. The PCR selection, which is passed with the --pcr parameter, is not compared with the attest, making it possible for an attacker to fake a valid attestation.

Solution(s)

  • amazon-linux-2023-upgrade-tpm2-tools
  • amazon-linux-2023-upgrade-tpm2-tools-debuginfo
  • amazon-linux-2023-upgrade-tpm2-tools-debugsource

References

  • https://attackerkb.com/topics/cve-2024-29039
  • CVE - 2024-29039
  • https://alas.aws.amazon.com/AL2023/ALAS-2024-693.html
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