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CVE-2024-35202

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Date: October 9, 2024

Bitcoin Core before 25.0 allows remote attackers to cause a denial of service (blocktxn message-handling assertion and node exit) by including transactions in a blocktxn message that are not committed to in a block's merkle root. FillBlock can be called twice for one PartiallyDownloadedBlock instance.

Severity Score

Related Resources (7)

https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-25.0.md
https://github.com/bitcoin/bitcoin/releases/tag/v25.0
https://nvd.nist.gov/vuln/detail/CVE-2024-35202
https://bitcoincore.org/en/2024/10/08/disclose-blocktxn-crash/
https://github.com/bitcoin/bitcoin/pull/26898
https://www.mend.io/vulnerability-database/CVE-2024-35202

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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