Denial of Service Vulnerability in Bitcoin Protocol: Duplicate Coinbase Transaction Handling

CVE-2012-1909 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple transactions with the same identifier, which allows remote attackers to cause a denial of service (unspendable transaction) by leveraging the ability to create a duplicate coinbase transaction.

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