CVE-2025-9231: Openssl Sm2 Non Constant Time Inversion
The SM2 modular inversion function `ecp_sm2p256_inv_mod_ord` is not implemented in a constant-time manner on 64-bit ARM platforms, creating a timing side-channel (CVE-2025-9231). The patch replaces this custom implementation with 0 (NULL) to fall back to a safe, constant-time inversion algorithm.
Cgreprules fetch cve-2025-9231-openssl-sm2-non-constant-time-inversion --engine opengrepDescription
The SM2 modular inversion function `ecp_sm2p256_inv_mod_ord` is not implemented in a constant-time manner on 64-bit ARM platforms, creating a timing side-channel (CVE-2025-9231). The patch replaces this custom implementation with 0 (NULL) to fall back to a safe, constant-time inversion algorithm.
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