CVE-2024-35202

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.53%
Vendor Advisory bitcoincore.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures third party advisory
https://github.com/bitcoin/bitcoin/releases/tag/v25.0 release notes
https://bitcoincore.org/en/2024/10/08/disclose-blocktxn-crash/ patch vendor advisory
https://github.com/bitcoin/bitcoin/pull/26898 issue tracking
https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-25.0.md release notes

Frequently Asked Questions

What is the severity of CVE-2024-35202?
CVE-2024-35202 has been scored as a high severity vulnerability.
How to fix CVE-2024-35202?
To fix CVE-2024-35202, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-35202 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-35202 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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