CVE-2019-25220

published 2024-11-18

CVE-2019-25220: 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…

Priority P3 35 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
bitcoin	bitcoin_core	< 24.0.1	24.0.1

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