Vulnerabilities > CVE-2023-26557 - Information Exposure Through Discrepancy vulnerability in Iofinnet Tss-Lib
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
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/paillier.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |