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.
Published: 2024-11-18
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

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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

Subscriptions

Bitcoin Bitcoin Core
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2024-11-18T00:00:00.000Z

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