#VU52962 Business Logic Errors in Bitcoin Core - CVE-2021-31876

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Main Vulnerability Database Vulnerabilities #VU52962

#VU52962 Business Logic Errors in Bitcoin Core - CVE-2021-31876

Published: May 7, 2021


Vulnerability identifier: #VU52962
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31876
CWE-ID: CWE-840
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Bitcoin Core
Software vendor:
Bitcoin

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to a logic error in Bitcoin Core bip125 logic, related to processing of unconfirmed transactions. A remote attacker can perform state-of-the-art pinning attacks or have other impact on various wallets.


Remediation

Install updates from vendor's website.

External links