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 |
Common Weakness Enumeration (CWE)
References
- https://github.com/bnb-chain/tss-lib/tree/v1.3.5
- https://github.com/bnb-chain/tss-lib/tree/v1.3.5
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
- https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3
- https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b