CVE-2024-35202

high

Description

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.

References

https://github.com/bitcoin/bitcoin/releases/tag/v25.0

https://github.com/bitcoin/bitcoin/pull/26898

https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-25.0.md

https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures

https://bitcoincore.org/en/2024/10/08/disclose-blocktxn-crash/

Details

Source: Mitre, NVD

Published: 2024-10-10

Updated: 2025-05-22

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00522