CVE-2017-12842 Business logic in n/a

High 7.5 Published 16 Mar 2020 Updated 5 Aug 2024

An attacker can forge valid SPV proofs for non-existent payments, potentially deceiving autonomous systems relying on SPV verification.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-12842?

CVE-2017-12842 is a high-severity vulnerability in Bitcoin Bitcoin Core, published on 16 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Bitcoin Core before 0.14 allows an attacker to create an ostensibly valid SPV proof for a payment to a victim who uses an SPV wallet, even if that payment did not actually occur. Completing the attack would cost more than a million dollars, and is relevant mainly only in situations where an autonomous system relies solely on an SPV proof for transactions of a greater dollar amount.

Weakness: CWE-20

Which versions are affected by CVE-2017-12842?

It affects 1 product.

Products include Bitcoin Bitcoin Core.

How do I fix CVE-2017-12842?

No fix has been published for CVE-2017-12842 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-12842 being exploited?

There is no known exploitation of CVE-2017-12842 in the wild and no public exploit code.

All Bitcoin Bitcoin Core vulnerabilities

Sources

Also known as GHSA-v55p-4chq-6grj.