CVE-2023-26556 – github.com/bnb-chain/tss-lib

Package

Manager: go
Name: github.com/bnb-chain/tss-lib
Vulnerable Version: >=0 <2.0.0

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00356 pctl0.57096

Details

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/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)

Metadata

Created: 2023-04-21T18:30:24Z
Modified: 2025-02-05T19:42:53Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-3w84-4mjc-rjw7/GHSA-3w84-4mjc-rjw7.json
CWE IDs: ["CWE-203"]
Alternative ID: GHSA-3w84-4mjc-rjw7
Finding: F026
Auto approve: 1