CVE-2020-12119 Business logic in n/a
Ledger Live incorrectly handles unconfirmed Bitcoin transactions, allowing attackers to perform double spending and denial of service attacks against users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-12119?
CVE-2020-12119 is a high-severity vulnerability in n/a, published on 2 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-345
Which versions are affected by CVE-2020-12119?
It affects 1 product.
Products include Ledger Ledger Live.
How do I fix CVE-2020-12119?
No fix has been published for CVE-2020-12119 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-12119 being exploited?
There is no known exploitation of CVE-2020-12119 in the wild and no public exploit code.
Sources
Also known as GHSA-gmgx-9fpg-9q58.