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    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. It was fixed in 1.9.1 for the Trezor One and 2.3.1 for the Trezor Model T.

    Published:Jun 16, 2020
    Last Modified:Nov 21, 2024
    EPS:Jun 16, 2020
    EPSS Score:0.0018
    CVSS Score:6.5

    Affected Products

    Vendor
    Satoshilabs
    Product
    Trezor Model T
    Vendor
    Satoshilabs
    Product
    Trezor Model T Firmware
    Vendor
    Satoshilabs
    Product
    Trezor One
    Vendor
    Satoshilabs
    Product
    Trezor One Firmware

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High