High severity · published Oct 10, 2024
CVE-2024-35202
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…
7.5
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Bitcoin Core · Bitcoin
before 25.0 · source: NVD
BI
Bitcoin · Bitcoin
before 25.0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-35202
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-35202
Patch
https://bitcoincore.org/en/2024/10/08/disclose-blocktxn-crash/
Third Party Advisory
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
Release Notes
https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-25.0.md
Issue Tracking
https://github.com/bitcoin/bitcoin/pull/26898
Release Notes
https://github.com/bitcoin/bitcoin/releases/tag/v25.0
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