CVE-2026-3580 - Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V

CVE-2026-3580 - Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V

https://cvefeed.io/rssfeed/latest.atom / Thu, 03/19/2026 - 23:07
CVE ID :CVE-2026-3580
Published : March 19, 2026, 8:16 p.m. | 45 minutes ago
Description :In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
Severity: 2.1 | LOW
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