Security Advisory

CVE-2019-25220

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-11-18 00:00:00

Last updated 2024-11-18 16:28:52

Assigner mitre

State PUBLISHED

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.

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