CVE Vulnerabilities

CVE-2020-12119

Insufficient Verification of Data Authenticity

Published: Jul 02, 2020 | Modified: Jul 08, 2020
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

Ledger Live before 2.7.0 does not handle Bitcoins Replace-By-Fee (RBF). It increases the users balance with the value of an unconfirmed transaction as soon as it is received (before the transaction is confirmed) and does not decrease the balance when it is canceled. As a result, users are exposed to basic double spending attacks, amplified double spending attacks, and DoS attacks without user consent.

Weakness

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Software

Name Vendor Start Version End Version
Ledger_live Ledger * 2.7.0 (excluding)

References