8.2

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2024-28960

CVE-2024-28960: An issue was discovered in Mbed TLS 2.18.0 through 2.28.x before 2.28.8 and 3.x before 3.6.0, and...

An issue was discovered in Mbed TLS 2.18.0 through 2.28.x before 2.28.8 and 3.x before 3.6.0, and Mbed Crypto. The PSA Crypto API mishandles shared memory.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2024-28960

CVE-2024-28960:

8.2

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

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Root Cause Analysis

The vulnerability description and the security advisory clearly state that the PSA Crypto API mishandles shared memory. The advisory specifically names psa_import_key, psa_sign_hash, and psa_sign_message as functions where this mishandling can lead to exploitation, particularly with RSA operations. The provided commits for Mbed TLS 2.28.8 and 3.6.0 show these exact functions being patched to introduce local buffer copying mechanisms (LOCAL_INPUT_ALLOC, LOCAL_OUTPUT_ALLOC, etc.). These macros ensure that data from shared memory is copied to a private buffer before processing and results are copied back, thus mitigating the TOCTOU vulnerabilities. The patch evidence directly correlates with the functions identified in the advisory.

Vulnerable functions

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WAF Rule

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Reasoning

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