Improper input validation in Bitcoin Core
CVE-2017-12842
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures (Vendor Advisory)
- bitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-desi… (Third Party Advisory)
- lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12842?
- CVE-2017-12842 is a high-severity vulnerability in Bitcoin Core, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-03-16.
- How severe is CVE-2017-12842?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-12842 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.