SB2024083059 - Fedora 40 update for tpm2-tools, tpm2-tss

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Main Vulnerability Database SB2024083059

SB2024083059 - Fedora 40 update for tpm2-tools, tpm2-tss

Published: August 30, 2024

Security Bulletin ID SB2024083059
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2024-29040)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to missing checks for the magic number. A local user can generate arbitrary quote data, which may not be detected by Fapi_VerifyQuote.


2) Mutable Attestation or Measurement Reporting Data (CVE-ID: CVE-2024-29038)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to improper input validation. A local user can generate arbitrary quote data which is not detected by tpm2 checkquote and gain access to sensitive information.


3) Reliance on Untrusted Inputs in a Security Decision (CVE-ID: CVE-2024-29039)

The vulnerability allows a local user to manipulate the TMP state.

The vulnerability exists due to insufficient validation of PCR input. A local user can alter TPML_PCR_SELECTION and manipulate the TMP state.


Remediation

Install update from vendor's website.

References