CVE-2020-12119
High
Description
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee (RBF). It increases the user's 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.
SeverityHigh
CVSS8.1
Exploit probability—
ProductLedger Live
PublishedJul 2, 2020
First seenJul 2, 2020
How to fix
Update
- ledger ledger_live2.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ledger ledger_live | v < 2.7.0 | 2.7.0 |
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