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CVE-2024-38365

7.4 · HIGH

btcd is an alternative full node bitcoin implementation written in Go (golang).

Published Oct 11, 2024CWE-670EPSS 1.01%

Overview

CVE-2024-38365 is a high-severity vulnerability. It was published on October 11, 2024 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

btcd is an alternative full node bitcoin implementation written in Go (golang). The btcd Bitcoin client (versions 0.10 to 0.24) did not correctly re-implement Bitcoin Core's "FindAndDelete()" functionality. This logic is consensus-critical: the difference in behavior with the other Bitcoin clients can lead to btcd clients accepting an invalid Bitcoin block (or rejecting a valid one). This consensus failure can be leveraged to cause a chain split (accepting an invalid Bitcoin block) or be exploited to DoS the btcd nodes (rejecting a valid Bitcoin block). An attacker can create a standard transaction where FindAndDelete doesn't return a match but removeOpCodeByData does making btcd get a different sighash, leading to a chain split. Importantly, this vulnerability can be exploited remotely by any Bitcoin user and does not require any hash power. This is because the difference in behavior can be triggered by a "standard" Bitcoin transaction, that is a transaction which gets relayed through

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdelvingbitcoin.org/t/cve-2024-38365-public-disclosure-btcd-findanddelete-bug/1184GitHubgithub.com/btcsuite/btcd/commit/04469e600e7d4a58881e2e5447d19024e49800f5GitHubgithub.com/btcsuite/btcd/releases/tag/v0.24.2GitHubgithub.com/btcsuite/btcd/security/advisories/GHSA-27vh-h6mc-q6g8

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38365?

CVE-2024-38365 is a high-severity vulnerability. It was published on October 11, 2024 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2024-38365?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-38365?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-38365?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38365 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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