| Package | Affected versions | Patched versions |
|---|---|---|
| bitcoin core | = 0.3.10= 0.3.11= 0.3.12= 0.3.4= 0.3.5= 0.3.8= 0.4.0= 0.4.1≤ 0.4.4 |
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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