bitcoind and Bitcoin-Qt 0.8.x before 0.8.1 do not enforce a certain block protocol rule, which allows remote attackers to bypass intended access restrictions and conduct double-spending attacks via a large block that triggers incorrect Berkeley DB locking in older product versions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Bitcoin_core | Bitcoin | 0.8.0 (including) | 0.8.0 (including) |
| Bitcoin_core | Bitcoin | 0.8.0-rc1 (including) | 0.8.0-rc1 (including) |