5 results · Feed
-
Critical —
tss-lib leaks secret keys in response to incorrectly constructed Paillier moduli
### Impact The specification of the GG18 threshold ECDSA signature protocol contains a vulnerability allowing an attacker to recover the shared secret key. If a participant generates a Paillier modulus `N` containing small factors (less than `2^100`) they can…
-
High 7.5
IO FinNet tss-lib vulnerable to timing attack from non-constant time scalar arithmetic
io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing side-channel attack because it relies on Go big.Int, which is not constant time for Cmp, modular exponentiation, or modular inverse. An example leak is in crypto/paillier/p…
-
Critical 9.1
IO FinNet tss-lib vulnerable to timing attack from non-constant time scalar multiplication
io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/ke…
-
Medium 6.8
IO FinNet tss-lib vulnerable to replay attacks involving proofs
An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemente…
-
Medium 6.5
Collision of hash values in github.com/bnb-chain/tss-lib
IO FinNet tss-lib before 2.0.0 allows a collision of hash values.