PyPi: Hwi

CVE-2020-14199

Safety vulnerability ID: 61049

This vulnerability was reviewed by experts

The information on this page was manually curated by our Cybersecurity Intelligence Team.

Created at Jun 16, 2020 Updated at Sep 17, 2024
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Advisory

Hwi 1.1.2 includes a fix for CVE-2020-14199: BIP-143 in the Bitcoin protocol specification mishandles the signing of a Segwit transaction, which allows attackers to trick a user into making two signatures in certain cases, potentially leading to a huge transaction fee. NOTE: this affects all hardware wallets.
https://github.com/bitcoin-core/HWI/commit/2ce8734a5ebdab84efcaef61ce6a10af43ddc10b

Affected package

hwi

Latest version: 3.1.0

A library for working with Bitcoin hardware wallets

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

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Severity Details

CVSS Base Score

MEDIUM 6.5

CVSS v3 Details

MEDIUM 6.5
Attack Vector (AV)
NETWORK
Attack Complexity (AC)
LOW
Privileges Required (PR)
NONE
User Interaction (UI)
REQUIRED
Scope (S)
UNCHANGED
Confidentiality Impact (C)
NONE
Integrity Impact (I)
HIGH
Availability Availability (A)
NONE

CVSS v2 Details

MEDIUM 4.3
Access Vector (AV)
NETWORK
Access Complexity (AC)
MEDIUM
Authentication (Au)
NONE
Confidentiality Impact (C)
NONE
Integrity Impact (I)
PARTIAL
Availability Impact (A)
NONE