Bitcoin Core up to 24.x blocktxn message-handling denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Bitcoin Core up to 24.x. Impacted is an unknown function of the component blocktxn message-handling. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2024-35202. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Bitcoin Core up to 24.x. This affects some unknown processing of the component blocktxn message-handling. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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.

It is possible to read the advisory at en.bitcoin.it. This vulnerability is uniquely identified as CVE-2024-35202 since 05/12/2024. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 25.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (MITRE): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Core 25.0
Patch: github.com

Timelineinfo

05/12/2024 🔍
10/10/2024 +151 days 🔍
10/10/2024 +0 days 🔍
10/15/2024 +5 days 🔍

Sourcesinfo

Advisory: en.bitcoin.it
Status: Confirmed

CVE: CVE-2024-35202 (🔍)
GCVE (CVE): GCVE-0-2024-35202
GCVE (VulDB): GCVE-100-279999

Entryinfo

Created: 10/10/2024 16:03
Updated: 10/15/2024 15:18
Changes: 10/10/2024 16:03 (57), 10/15/2024 15:18 (12)
Complete: 🔍
Cache ID: 216::103

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