Information Disclosure Affecting github.com/binance-chain/tss-lib/crypto/commitments package, versions <1.2.0


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
0.14% (51st percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMBINANCECHAINTSSLIBCRYPTOCOMMITMENTS-567416
  • published23 Apr 2020
  • disclosed23 Apr 2020
  • creditUnknown

Introduced: 23 Apr 2020

CVE-2020-12118  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade github.com/binance-chain/tss-lib/crypto/commitments to version 1.2.0 or higher.

Overview

github.com/binance-chain/tss-lib/crypto/commitments is a crypto commitments module for tss-lib.

Affected versions of this package are vulnerable to Information Disclosure. It is possible for a malicious actor to generate bad parameters h1,h2 that are shared with other parties during keygen. This allowed such an actor to compromise signing rounds and potentially expose the private data of other parties.

Existing save data for signing groups that have already completed keygen should be considered secure if the parties were trusted at the time of keygen. This vulnerability could only have been exploited when a malicious actor with prior knowledge of this vulnerability had participated in keygen.

CVSS Base Scores

version 3.1