Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon crash) via a flood of low-difficulty header chains (aka a "Chain Width Expansion" attack) because a node does not first verify that a presented chain has enough work before committing to store it.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 18 Nov 2024 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Bitcoin
Bitcoin bitcoin Core
Weaknesses CWE-770
CPEs cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*
Vendors & Products Bitcoin
Bitcoin bitcoin Core
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 18 Nov 2024 03:30:00 +0000

Type Values Removed Values Added
Description Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon crash) via a flood of low-difficulty header chains (aka a "Chain Width Expansion" attack) because a node does not first verify that a presented chain has enough work before committing to store it.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-11-18T16:28:52.209Z

Reserved: 2024-11-18T00:00:00

Link: CVE-2019-25220

cve-icon Vulnrichment

Updated: 2024-11-18T16:28:40.669Z

cve-icon NVD

Status : Analyzed

Published: 2024-11-18T04:15:04.107

Modified: 2025-05-22T16:56:23.983

Link: CVE-2019-25220

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses