Information Exposure Affecting github.com/bnb-chain/tss-lib/ecdsa/keygen package, versions <2.0.0


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMBNBCHAINTSSLIBECDSAKEYGEN-5879644
  • published3 Sept 2023
  • disclosed1 Sept 2023
  • creditFireblocks Labs

Introduced: 1 Sep 2023

CVE-2023-33241  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade github.com/bnb-chain/tss-lib/ecdsa/keygen to version 2.0.0 or higher.

Overview

github.com/bnb-chain/tss-lib/ecdsa/keygen is a Threshold Signature Scheme, for ECDSA and EDDSA

Affected versions of this package are vulnerable to Information Exposure when the Paillier modulus N is constructed with small factors (less than 2^100). An attacker can interact with other participants in the signing protocol to steal their secret key shares within as few as sixteen signing attempts, subsequently reconstructing the master key from these shares.

NOTE: This vulnerability is addressed in version 2.0.0. The maintainers recommend upgrading all packages and wallets to avoid security issues.

CVSS Scores

version 3.1