RUSTSEC-2021-0076: libsecp256k1 allows overflowing signatures #71
Description
libsecp256k1 allows overflowing signatures
| Details | |
|---|---|
| Package | libsecp256k1 |
| Version | 0.3.5 |
| URL | paritytech/libsecp256k1#67 |
| Date | 2021-07-13 |
| Patched versions | >=0.5.0 |
libsecp256k1 accepts signatures whose R or S parameter is larger than the
secp256k1 curve order, which differs from other implementations. This could
lead to invalid signatures being verified.
The error is resolved in 0.5.0 by adding a check_overflow flag.
See advisory page for additional details.