67 matches found
NFTXSimpleFeeDistributor._sendForReceiver doesn't return success if receiver is not a contract
Handle hyh Vulnerability details Impact Double spending of fees being distributed will happen in favor of the first fee receivers in the feeReceivers list at the expense of the last ones. As sendForReceiver doesn't return success for completed transfer when receiver isn't a contract, the...
CVE-2020-8806
Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced...
CVE-2020-8806
Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced...
CVE-2020-8806
Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced...
Design/Logic Flaw
Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced...
CVE-2020-8806
Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced...
CVE-2020-8806
CVE-2020-8806 affects Electric Coin Company Zcashd (before 2.1.1-1). The root cause is improper enforcement of timestamp requirements on block headers, which could cause a valid chain to be rejected, enabling consensus failure and potential double spending. A fix is available in 2.1.1-1 (and hotf...
Twinned Tree Vulnerability Has Logic Flaw Vulnerability
Overview: Merkle Tree MT is one of the basic algorithms used in blockchain technology to safeguard data against tampering and fast verification. Due to problems in the implementation of some MT construction algorithms, it allows attackers to tamper with part of the block data without affecting th...
CVE-2020-12119
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee RBF. It increases the user's balance with the value of an unconfirmed transaction as soon as it is received before the transaction is confirmed and does not decrease the balance when it is canceled. As a result, users are exposed t...
CVE-2020-12119
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee RBF. It increases the user's balance with the value of an unconfirmed transaction as soon as it is received before the transaction is confirmed and does not decrease the balance when it is canceled. As a result, users are exposed t...
Design/Logic Flaw
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee RBF. It increases the user's balance with the value of an unconfirmed transaction as soon as it is received before the transaction is confirmed and does not decrease the balance when it is canceled. As a result, users are exposed t...
CVE-2020-12119
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee RBF. It increases the user's balance with the value of an unconfirmed transaction as soon as it is received before the transaction is confirmed and does not decrease the balance when it is canceled. As a result, users are exposed t...
CVE-2020-12119
Ledger Live before version 2.7.0 is affected by an RBF handling flaw: unconfirmed Bitcoin transactions are credited to the user’s balance upon receipt and not deducted if canceled, enabling basic and amplified double-spending and potential DoS attacks without user consent. The vulnerability is do...
bitcoind and Bitcoin-Qt permissions licenses and access controls
A security vulnerability exists in bitcoind and Bitcoin-Qt versions 0.8.0 to 0.8.0:rc1, which stems from the program's failure to implement protocol rules for certain blocks. A remote attacker could exploit the vulnerability to bypass established access restrictions and perform a double-spending...
bitcoind/Bitcoin-Qt/wxBitcoin Resource Management Errors
Bitcoin is an electronic currency created with open source P2P software. A vulnerability exists in bitcoind and Bitcoin-Qt, wxBitcoin, which stems from the program not taking into account that block sizes may require more database locks. A remote attacker could exploit the vulnerability by...
Explained: blockchain technology
Last week, we talked about what cryptocurrency is and why cybercriminals love it. We mentioned that cryptocurrency was founded on a technology called blockchain, which is a tight system that, when applied correctly, is more secure than most other financial transactions. In this post, we'll explai...
CVE-2013-3219
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...
CVE-2013-3219
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...
Design/Logic Flaw
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...
Code injection
bitcoind and Bitcoin-Qt before 0.4.9rc2, 0.5.x before 0.5.8rc2, 0.6.x before 0.6.5rc2, and 0.7.x before 0.7.3rc2, and wxBitcoin, do not properly consider whether a block's size could require an excessive number of database locks, which allows remote attackers to cause a denial of service split an...