Improper Verification of Cryptographic Signature Affecting cryptoadvance.specter package, versions [,0.5.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-PYTHON-CRYPTOADVANCESPECTER-5821414
  • published7 Aug 2023
  • disclosed1 Aug 2023
  • creditUnknown

Introduced: 1 Aug 2023

CVE-2020-14199  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade cryptoadvance.specter to version 0.5.0 or higher.

Overview

cryptoadvance.specter is an A GUI for Bitcoin Core & Electrum optimised to work with airgapped hardware wallets

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the form of mishandling the signing of a Segwit transaction, such that attackers can trick a user into making two signatures, leading to a huge transaction fee in the BIP-143 protocol.

CVSS Scores

version 3.1