| Package | Affected versions | Patched versions |
|---|---|---|
| wolfssl | < 5.9.1 | 5.9.1 |
wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity, using only publicly-known constants.
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