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    2 vulnerabilities found for wolfTPM by wolfSSL Inc.

    CVE-2025-7844 (GCVE-0-2025-7844)

    Vulnerability from cvelistv5 – Published: 2025-08-04 21:35 – Updated: 2025-08-05 13:36
    VLAI
    Title
    wolfTPM library wrapper function `wolfTPM2_RsaKey_TpmToWolf` copies external data to a fixed-size stack buffer without length validation potentially causing stack-based buffer overflow
    Summary
    Exporting a TPM based RSA key larger than 2048 bits from the TPM could overrun a stack buffer if the default `MAX_RSA_KEY_BITS=2048` is used. If your TPM 2.0 module supports RSA key sizes larger than 2048 bit and your applications supports creating or importing an RSA private or public key larger than 2048 bits and your application calls `wolfTPM2_RsaKey_TpmToWolf` on that key, then a stack buffer could be overrun. If the `MAX_RSA_KEY_BITS` build-time macro is set correctly (RSA bits match what TPM hardware is capable of) for the hardware target, then a stack overrun is not possible.
    Severity
    1 (Low)
    CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Green
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    wolfSSL Inc. wolfTPM Affected: 0 , ≤ 3.9.2 (git)
    		Create a notification for this product.
    Date Public
    2025-07-18 20:15
    Credits
    Richard Mitev, Giannis Mouzenidis, Patrick Jauernig from SANCTUARY Systems GmbH
    Show details on NVD website
    To clipboard 

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    CVE-2025-7844 (GCVE-0-2025-7844)

    Vulnerability from nvd – Published: 2025-08-04 21:35 – Updated: 2025-08-05 13:36
    VLAI
    Title
    wolfTPM library wrapper function `wolfTPM2_RsaKey_TpmToWolf` copies external data to a fixed-size stack buffer without length validation potentially causing stack-based buffer overflow
    Summary
    Exporting a TPM based RSA key larger than 2048 bits from the TPM could overrun a stack buffer if the default `MAX_RSA_KEY_BITS=2048` is used. If your TPM 2.0 module supports RSA key sizes larger than 2048 bit and your applications supports creating or importing an RSA private or public key larger than 2048 bits and your application calls `wolfTPM2_RsaKey_TpmToWolf` on that key, then a stack buffer could be overrun. If the `MAX_RSA_KEY_BITS` build-time macro is set correctly (RSA bits match what TPM hardware is capable of) for the hardware target, then a stack overrun is not possible.
    Severity
    1 (Low)
    CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Green
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    wolfSSL Inc. wolfTPM Affected: 0 , ≤ 3.9.2 (git)
    		Create a notification for this product.
    Date Public
    2025-07-18 20:15
    Credits
    Richard Mitev, Giannis Mouzenidis, Patrick Jauernig from SANCTUARY Systems GmbH
    Show details on NVD website
    To clipboard 

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