Denial of Service Vulnerability in CTransaction::FetchInputs Method

CVE-2013-2293 · MEDIUM Severity

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

The CTransaction::FetchInputs method in bitcoind and Bitcoin-Qt before 0.8.0rc1 copies transactions from disk to memory without incrementally checking for spent prevouts, which allows remote attackers to cause a denial of service (disk I/O consumption) via a Bitcoin transaction with many inputs corresponding to many different parts of the stored block chain.

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