The Bloom Filter implementation in bitcoind and Bitcoin-Qt 0.8.x before 0.8.4rc1 allows remote attackers to cause a denial of service (divide-by-zero error and daemon crash) via a crafted sequence of messages.Referenceshttps://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposureshttps://bitcointalk.org/index.php?topic=287351