Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| wolfSSL / wolfSSL | affected 0 before 5.9.1 |
CWE
CWE-347
References
ADP enrichment
No English description supplied.
No references supplied.