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stringlengths 26
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13,356 | constructor() ERC20Detailed("SimpleSwap Coin", "SWAP", 8) public {
_mint(msg.sender, 100000000 * (10 ** 8));
} | 0 | buggy_40.sol |
9,419 | function approve(address spender, uint tokens) public returns (bool success); | 0 | buggy_48.sol |
9,172 | function callnotchecked_unchk13(address callee) public {
callee.call.value(1 ether);
} | 3 | buggy_40.sol |
3,996 | function withdraw_intou33() public {
require(now > lockTime_intou33[msg.sender]);
uint transferValue_intou33 = 10;
msg.sender.transfer(transferValue_intou33);
} | 2 | buggy_33.sol |
4,390 | function bug_intou39() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
} | 2 | buggy_23.sol |
17,156 | function updateLCstate(
bytes32 _lcID,
uint256[6] updateParams, // [sequence, numOpenVc, ethbalanceA, ethbalanceI, tokenbalanceA, tokenbalanceI]
bytes32 _VCroot,
string _sigA,
string _sigI
)
public
{
Channel storage channel = Channels[_lcID];
require(channel.isOpen);
require(channel.sequence < updateParams[0]); // do same as vc sequence check
require(channel.ethBalances[0] + channel.ethBalances[1] >= updateParams[2] + updateParams[3]);
require(channel.erc20Balances[0] + channel.erc20Balances[1] >= updateParams[4] + updateParams[5]);
if(channel.isUpdateLCSettling == true) {
require(channel.updateLCtimeout > now);
}
bytes32 _state = keccak256(
abi.encodePacked(
_lcID,
false,
updateParams[0],
updateParams[1],
_VCroot,
channel.partyAddresses[0],
channel.partyAddresses[1],
updateParams[2],
updateParams[3],
updateParams[4],
updateParams[5]
)
);
require(channel.partyAddresses[0] == ECTools.recoverSigner(_state, _sigA));
require(channel.partyAddresses[1] == ECTools.recoverSigner(_state, _sigI));
// update LC state
channel.sequence = updateParams[0];
channel.numOpenVC = updateParams[1];
channel.ethBalances[0] = updateParams[2];
channel.ethBalances[1] = updateParams[3];
channel.erc20Balances[0] = updateParams[4];
channel.erc20Balances[1] = updateParams[5];
channel.VCrootHash = _VCroot;
channel.isUpdateLCSettling = true;
channel.updateLCtimeout = now + channel.confirmTime;
// make settlement flag
emit DidLCUpdateState (
_lcID,
updateParams[0],
updateParams[1],
updateParams[2],
updateParams[3],
updateParams[4],
updateParams[5],
_VCroot,
channel.updateLCtimeout
);
} | 0 | spank_chain_payment.sol |
15,586 | function callme_re_ent28() public{
require(counter_re_ent28<=5);
if( ! (msg.sender.send(10 ether) ) ){
revert();
}
counter_re_ent28 += 1;
} | 5 | buggy_27.sol |
12,179 | function claimReward_TOD14(uint256 submission) public {
require (!claimed_TOD14);
require(submission < 10);
msg.sender.transfer(reward_TOD14);
claimed_TOD14 = true;
} | 4 | buggy_7.sol |
13,001 | function getReward_TOD7() payable public{
winner_TOD7.transfer(msg.value);
} | 4 | buggy_50.sol |
2,885 | function transferTo_txorigin35(address to, uint amount,address owner_txorigin35) public {
require(tx.origin == owner_txorigin35);
to.call.value(amount);
} | 1 | buggy_29.sol |
635 | function transferTo_txorigin7(address to, uint amount,address owner_txorigin7) public {
require(tx.origin == owner_txorigin7);
to.call.value(amount);
} | 1 | buggy_26.sol |
17,810 | function totalSupply() external view returns (uint256); | 0 | buggy_28.sol |
12,594 | function claimReward_TOD34(uint256 submission) public {
require (!claimed_TOD34);
require(submission < 10);
msg.sender.transfer(reward_TOD34);
claimed_TOD34 = true;
} | 4 | buggy_35.sol |
16,304 | function withdrawBalance_re_ent26() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
(bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])("");
if( ! success ){
revert();
}
userBalance_re_ent26[msg.sender] = 0;
} | 5 | buggy_20.sol |
9,155 | function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount));
return true;
} | 0 | buggy_40.sol |
2,424 | function transferTo_txorigin23(address to, uint amount,address owner_txorigin23) public {
require(tx.origin == owner_txorigin23);
to.call.value(amount);
} | 1 | buggy_48.sol |
7,717 | function transfer(address _to, uint256 _value) public returns (bool success); | 0 | buggy_32.sol |
19,531 | function bug_tmstmp37() view public returns (bool) {
return block.timestamp >= 1546300800;
} | 6 | buggy_20.sol |
8,236 | function init(Token _tokenAddress, address _chairmanAddress, uint _minimumTokensToVote, uint _minimumPercentToPassAVote, uint _minutesForDebate) onlyOwner public {
require(!initialized);
initialized = true;
changeVotingRules(_tokenAddress, _chairmanAddress, _minimumTokensToVote, _minimumPercentToPassAVote, _minutesForDebate);
emit Initialized();
} | 0 | buggy_36.sol |
11,778 | function transferFrom(address from, address to, uint256 value) external returns (bool); | 0 | buggy_23.sol |
18,961 | function play_tmstmp30(uint startTime) public {
if (startTime + (5 * 1 days) == block.timestamp){
winner_tmstmp30 = msg.sender;}} | 6 | buggy_6.sol |
23,463 | function _mint(address account, uint256 amount) internal {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
} | 0 | buggy_40.sol |
14,809 | function withdrawBalance_re_ent33() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
(bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])("");
if( ! success ){
revert();
}
userBalance_re_ent33[msg.sender] = 0;
} | 5 | buggy_31.sol |
24,579 | function bug_unchk_send8() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_15.sol |
16,035 | function receiveApproval(address _from, uint256 _value, address _token, bytes memory _extraData) public {
Token t = Token(_token);
require(t.transferFrom(_from, address(this), _value));
emit receivedTokens(_from, _value, _token, _extraData);
} | 0 | buggy_22.sol |
8,116 | function withdrawLeftOver_unchk33() public {
require(payedOut_unchk33);
msg.sender.send(address(this).balance);
} | 3 | buggy_23.sol |
15,787 | function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue));
return true;
} | 0 | buggy_23.sol |
5,401 | function increaseLockTime_intou37(uint _secondsToIncrease) public {
lockTime_intou37[msg.sender] += _secondsToIncrease; //overflow
} | 2 | buggy_44.sol |
12,669 | constructor() public payable {} // load with ether | 0 | FindThisHash.sol |
4,301 | function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
} | 0 | buggy_23.sol |
2,753 | function bug_txorigin20(address owner_txorigin20) public{
require(tx.origin == owner_txorigin20);
} | 1 | buggy_17.sol |
16,864 | function _burn(address account, uint256 value) internal {
require(account != address(0), "ERC20: burn from the zero address");
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
} | 0 | buggy_40.sol |
22,118 | function bug_unchk_send10() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_6.sol |
24,592 | function bug_unchk_send19() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_29.sol |
17,018 | function _setOperator(address operator) internal {
require(_operator != operator, "cannot set same operator");
_operator = operator;
emit OperatorUpdated(operator, hasActiveOperator());
} | 0 | buggy_43.sol |
656 | function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
uint256 c = a - b;
return c;
} | 0 | buggy_32.sol |
23,544 | function Command(address adr,bytes data)
payable
public
{
require(msg.sender == Owner);
// <yes> <report> UNCHECKED_LL_CALLS
adr.call.value(msg.value)(data);
} | 7 | 0xdb1c55f6926e7d847ddf8678905ad871a68199d2.sol |
10,424 | function operatorBurn(
address account,
uint256 amount,
bytes calldata data,
bytes calldata operatorData
) external; | 0 | buggy_30.sol |
21,274 | function bug_unchk_send23() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_25.sol |
1,196 | constructor() public {
owner = msg.sender;
} | 0 | buggy_36.sol |
22,608 | function bug_unchk_send14() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_7.sol |
22,842 | function bug_unchk_send17() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_20.sol |
19,358 | function play_tmstmp14(uint startTime) public {
if (startTime + (5 * 1 days) == block.timestamp){
winner_tmstmp14 = msg.sender;}} | 6 | buggy_5.sol |
18,084 | function setOpenStatus(uint64 _fixtureId, uint8 _open_status) external onlyOwner {
gameList[_fixtureId].open_status = _open_status;
} | 0 | buggy_25.sol |
4,852 | contract LollypopToken is Ownable {
using SafeMath for uint256;
mapping(address => uint) public lockTime_intou5;
function increaseLockTime_intou5(uint _secondsToIncrease) public {
lockTime_intou5[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou5() public {
require(now > lockTime_intou5[msg.sender]);
uint transferValue_intou5 = 10;
msg.sender.transfer(transferValue_intou5);
}
mapping (address => transferMapping) private _balances;
function bug_intou15() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
mapping (address => mapping (address => uint256)) private _allowances;
function bug_intou28(uint8 p_intou28) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou28; // overflow bug
}
uint256 private _totalSupply;
mapping(address => uint) balances_intou34;
function transfer_intou34(address _to, uint _value) public returns (bool) {
require(balances_intou34[msg.sender] - _value >= 0); //bug
balances_intou34[msg.sender] -= _value; //bug
balances_intou34[_to] += _value; //bug
return true;
}
uint256 public _maxTotalSupply;
mapping(address => uint) public lockTime_intou21;
function increaseLockTime_intou21(uint _secondsToIncrease) public {
lockTime_intou21[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou21() public {
require(now > lockTime_intou21[msg.sender]);
uint transferValue_intou21 = 10;
msg.sender.transfer(transferValue_intou21);
}
string private _name = "Lollypop";
mapping(address => uint) balances_intou10;
function transfer_intou10(address _to, uint _value) public returns (bool) {
require(balances_intou10[msg.sender] - _value >= 0); //bug
balances_intou10[msg.sender] -= _value; //bug
balances_intou10[_to] += _value; //bug
return true;
}
string private _symbol = "Lolly";
mapping(address => uint) balances_intou22;
function transfer_intou22(address _to, uint _value) public returns (bool) {
require(balances_intou22[msg.sender] - _value >= 0); //bug
balances_intou22[msg.sender] -= _value; //bug
balances_intou22[_to] += _value; //bug
return true;
}
uint8 private _decimals= 18;
function bug_intou12(uint8 p_intou12) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou12; // overflow bug
}
uint256 public maxAgeOfToken = 365 days;
function bug_intou11() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
uint256 public minAgeOfToken = 1 days;
mapping(address => uint) public lockTime_intou1;
function increaseLockTime_intou1(uint _secondsToIncrease) public {
lockTime_intou1[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_ovrflow1() public {
require(now > lockTime_intou1[msg.sender]);
uint transferValue_intou1 = 10;
msg.sender.transfer(transferValue_intou1);
}
uint256 public perDayBonus = 100; // Divisible 1/100 (0.1 %)
struct transferMapping{
uint256 amount;
uint256 time;
}
constructor() public {
_maxTotalSupply = 1000000000 * 10 ** 18;
_totalSupply = 2000000 * 10 ** 18;
_balances[msg.sender].amount = _totalSupply;
_balances[msg.sender].time = now;
}
mapping(address => uint) public lockTime_intou37;
function increaseLockTime_intou37(uint _secondsToIncrease) public {
lockTime_intou37[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou37() public {
require(now > lockTime_intou37[msg.sender]);
uint transferValue_intou37 = 10;
msg.sender.transfer(transferValue_intou37);
}
function calculateBonus(uint256 timeElasped , uint256 amount) public view returns(uint256){
uint256 totalDays = timeElasped.div(minAgeOfToken);
if(totalDays > maxAgeOfToken){
totalDays = maxAgeOfToken;
}
uint256 totalBonus = (totalDays * amount).div(perDayBonus);
return totalBonus;
}
function bug_intou3() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
uint256 senderTimeElasped = now - (_balances[sender].time);
uint256 recipientTimeElasped = now - (_balances[recipient].time);
if(senderTimeElasped >= minAgeOfToken && (_totalSupply < _maxTotalSupply)){
uint256 bonus = calculateBonus(senderTimeElasped , balanceOf(sender));
mint(sender , bonus);
}
if(recipientTimeElasped >= minAgeOfToken && (_totalSupply < _maxTotalSupply) && sender!= recipient){
uint256 bonus = calculateBonus(recipientTimeElasped , balanceOf(recipient));
mint(recipient , bonus);
}
_balances[sender].amount = _balances[sender].amount.sub(amount);
_balances[recipient].amount = _balances[recipient].amount.add(amount);
_balances[sender].time = now;
_balances[recipient].time = now;
emit Transfer(sender, recipient, amount);
}
mapping(address => uint) public lockTime_intou9;
function increaseLockTime_intou9(uint _secondsToIncrease) public {
lockTime_intou9[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou9() public {
require(now > lockTime_intou9[msg.sender]);
uint transferValue_intou9 = 10;
msg.sender.transfer(transferValue_intou9);
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
mapping(address => uint) public lockTime_intou25;
function increaseLockTime_intou25(uint _secondsToIncrease) public {
lockTime_intou25[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou25() public {
require(now > lockTime_intou25[msg.sender]);
uint transferValue_intou25 = 10;
msg.sender.transfer(transferValue_intou25);
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view returns (string memory) {
return _symbol;
}
function bug_intou19() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei.
*
* > Note that this information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* `IERC20.balanceOf` and `IERC20.transfer`.
*/
function decimals() public view returns (uint8) {
return _decimals;
}
mapping(address => uint) balances_intou26;
function transfer_intou26(address _to, uint _value) public returns (bool) {
require(balances_intou26[msg.sender] - _value >= 0); //bug
balances_intou26[msg.sender] -= _value; //bug
balances_intou26[_to] += _value; //bug
return true;
}
modifier onlyLollypopAndOwner {
require(msg.sender == address(this) || msg.sender == owner);
_;
}
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
function bug_intou31() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to `approve`. `value` is the new allowance.
*/
mapping(address => uint) public lockTime_intou13;
function increaseLockTime_intou13(uint _secondsToIncrease) public {
lockTime_intou13[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou13() public {
require(now > lockTime_intou13[msg.sender]);
uint transferValue_intou13 = 10;
msg.sender.transfer(transferValue_intou13);
}
event Approval(address indexed owner, address indexed spender, uint256 value);
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a `Transfer` event with `from` set to the zero address.
*
* Requirements
*
* - `to` cannot be the zero address.
*/
function mint(address account, uint256 amount) internal {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply = _totalSupply.add(amount);
_balances[account].amount = _balances[account].amount.add(amount);
emit Transfer(address(0), account, amount);
}
function bug_intou20(uint8 p_intou20) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou20; // overflow bug
}
/**
* @dev See `IERC20.totalSupply`.
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function bug_intou32(uint8 p_intou32) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou32; // overflow bug
}
/**
* @dev See `IERC20.balanceOf`.
*/
function balanceOf(address account) public view returns (uint256) {
return _balances[account].amount;
}
mapping(address => uint) balances_intou38;
function transfer_intou38(address _to, uint _value) public returns (bool) {
require(balances_intou38[msg.sender] - _value >= 0); //bug
balances_intou38[msg.sender] -= _value; //bug
balances_intou38[_to] += _value; //bug
return true;
}
function timeOf(address account) public view returns (uint256) {
return _balances[account].time;
}
function bug_intou4(uint8 p_intou4) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou4; // overflow bug
}
/**
* @dev See `IERC20.transfer`.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function bug_intou7() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
function multiTransfer(address[] memory receivers, uint256[] memory amounts) public {
require(receivers.length == amounts.length);
for (uint256 i = 0; i < receivers.length; i++) {
transfer(receivers[i], amounts[i]);
}
}
function bug_intou23() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
/**
* @dev See `IERC20.allowance`.
*/
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
mapping(address => uint) balances_intou14;
function transfer_intou14(address _to, uint _value) public returns (bool) {
require(balances_intou14[msg.sender] - _value >= 0); //bug
balances_intou14[msg.sender] -= _value; //bug
balances_intou14[_to] += _value; //bug
return true;
}
/**
* @dev See `IERC20.approve`.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 value) public returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
mapping(address => uint) balances_intou30;
function transfer_intou30(address _to, uint _value) public returns (bool) {
require(balances_intou30[msg.sender] - _value >= 0); //bug
balances_intou30[msg.sender] -= _value; //bug
balances_intou30[_to] += _value; //bug
return true;
}
/**
* @dev See `IERC20.transferFrom`.
*
* Emits an `Approval` event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of `ERC20`;
*
* Requirements:
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `value`.
* - the caller must have allowance for `sender`'s tokens of at least
* `amount`.
*/
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount));
return true;
}
function bug_intou8(uint8 p_intou8) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou8; // overflow bug
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to `approve` that can be used as a mitigation for
* problems described in `IERC20.approve`.
*
* Emits an `Approval` event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
return true;
}
function bug_intou39() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to `approve` that can be used as a mitigation for
* problems described in `IERC20.approve`.
*
* Emits an `Approval` event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue));
return true;
}
function bug_intou36(uint8 p_intou36) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou36; // overflow bug
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to `transfer`, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a `Transfer` event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
/**
* @dev Destoys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a `Transfer` event with `to` set to the zero address.
*
* Requirements
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0), "ERC20: burn from the zero address");
_totalSupply = _totalSupply.sub(value);
_balances[account].amount = _balances[account].amount.sub(value);
emit Transfer(account, address(0), value);
}
function bug_intou35() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
*
* This is internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an `Approval` event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 value) internal {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = value;
emit Approval(owner, spender, value);
}
function bug_intou40(uint8 p_intou40) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou40; // overflow bug
}
/**
* @dev Destoys `amount` tokens from `account`.`amount` is then deducted
* from the caller's allowance.
*
* See `_burn` and `_approve`.
*/
function _burnFrom(address account, uint256 amount) internal {
_burn(account, amount);
_approve(account, msg.sender, _allowances[account][msg.sender].sub(amount));
}
mapping(address => uint) public lockTime_intou33;
function increaseLockTime_intou33(uint _secondsToIncrease) public {
lockTime_intou33[msg.sender] += _secondsToIncrease; //overflow
}
function withdraw_intou33() public {
require(now > lockTime_intou33[msg.sender]);
uint transferValue_intou33 = 10;
msg.sender.transfer(transferValue_intou33);
}
} | 2 | buggy_34.sol |
18,673 | function bug_tmstmp36 () public payable {
uint pastBlockTime_tmstmp36; // Forces one bet per block
require(msg.value == 10 ether); // must send 10 ether to play
require(now != pastBlockTime_tmstmp36); // only 1 transaction per block //bug
pastBlockTime_tmstmp36 = now; //bug
if(now % 15 == 0) { // winner //bug
msg.sender.transfer(address(this).balance);
}
} | 6 | buggy_32.sol |
18,502 | function mint(uint256 nonce, bytes32 challenge_digest) public returns(bool success) {
//the PoW must contain work that includes a recent ethereum block hash (challenge number) and the msg.sender's address to prevent MITM attacks
bytes32 digest = keccak256(abi.encodePacked(challengeNumber, msg.sender, nonce));
//the challenge digest must match the expected
if (digest != challenge_digest) revert();
//the digest must be smaller than the target
if (uint256(digest) > miningTarget) revert();
//only allow one reward for each challenge
bytes32 solution = solutionForChallenge[challengeNumber];
solutionForChallenge[challengeNumber] = digest;
if (solution != 0x0) revert(); //prevent the same answer from awarding twice
uint reward_amount = getMiningReward();
balances[msg.sender] = balances[msg.sender].add(reward_amount);
tokensMinted = tokensMinted.add(reward_amount);
//Cannot mint more tokens than there are
assert(tokensMinted <= maxSupplyForEra);
//set readonly diagnostics data
lastRewardTo = msg.sender;
lastRewardAmount = reward_amount;
lastRewardEthBlockNumber = block.number;
_startNewMiningEpoch();
emit Mint(msg.sender, reward_amount, epochCount, challengeNumber);
return true;
} | 0 | buggy_18.sol |
14,883 | function isInvestExpired(User memory user) private view returns (bool expired) {
expired = (user.currentInvestTime.add(user.currentInvestCycle.mul(ONE_DAY)) < now);
} | 0 | buggy_24.sol |
5,365 | function bug_intou23() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
} | 2 | buggy_50.sol |
14,590 | function approve(address spender, uint256 value) public returns (bool) {
_approve(msg.sender, spender, value);
return true;
} | 0 | buggy_14.sol |
16,284 | function claimReward_re_ent4() public {
// ensure there is a reward to give
require(redeemableEther_re_ent4[msg.sender] > 0);
uint transferValue_re_ent4 = redeemableEther_re_ent4[msg.sender];
msg.sender.transfer(transferValue_re_ent4); //bug
redeemableEther_re_ent4[msg.sender] = 0;
} | 5 | buggy_20.sol |
2,823 | function receiveApproval(address _from, uint256 _value, address _token, bytes calldata _extraData) external; | 0 | buggy_15.sol |
7,709 | function approve(address _spender, uint256 _value) public returns (bool success) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
} | 0 | buggy_32.sol |
17,758 | function addListing(uint256 initialAmount, uint256 pricePerToken) external onlyUnpaused {
require(raffleContract.balanceOf(msg.sender) >= initialAmount, "Amount to sell is higher than balance!");
require(raffleContract.allowance(msg.sender, address(this)) >= initialAmount, "Allowance is to small (increase allowance)!");
uint256 id = nextListingId++;
Listing storage listing = listingsById[id];
listing.initialAmount = initialAmount;
listing.amountLeft = initialAmount;
listing.pricePerToken = pricePerToken;
listing.seller = msg.sender;
listing.active = true;
emit Listed(id, listing.pricePerToken, listing.initialAmount, listing.seller);
} | 0 | buggy_29.sol |
18,717 | constructor() public {
address initialOwner = 0xac775cD446889ac167da466692449ece5439fc12;
totalSupply = 180000000 * (10**uint256(decimals)); //initial token creation
balances[initialOwner] = totalSupply;
emit Transfer(address(0), initialOwner, balances[initialOwner]);
} | 0 | buggy_32.sol |
15,395 | function callme_re_ent35() public{
require(counter_re_ent35<=5);
if( ! (msg.sender.send(10 ether) ) ){
revert();
}
counter_re_ent35 += 1;
} | 5 | buggy_26.sol |
8,908 | function callnotchecked_unchk25(address payable callee) public {
callee.call.value(1 ether);
} | 3 | buggy_50.sol |
24,722 | function totalSupply() external view returns (uint256); | 0 | buggy_14.sol |
8,807 | function my_func_uncheck12(address payable dst) public payable{
dst.call.value(msg.value)("");
} | 3 | buggy_47.sol |
21,728 | function bug_unchk_send26() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_1.sol |
13,584 | function play_TOD31(bytes32 guess) public{
if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) {
winner_TOD31 = msg.sender;
}
} | 4 | buggy_42.sol |
9,231 | function bug_unchk39(address payable addr) public
{addr.send (4 ether); } | 3 | buggy_43.sol |
4,803 | function increaseLockTime_intou1(uint _secondsToIncrease) public {
lockTime_intou1[msg.sender] += _secondsToIncrease; //overflow
} | 2 | buggy_34.sol |
20,541 | function play_tmstmp19(uint startTime) public {
uint _vtime = block.timestamp;
if (startTime + (5 * 1 days) == _vtime){
winner_tmstmp19 = msg.sender;}} | 6 | buggy_11.sol |
17,688 | function donate(address to) payable {
credit[to] += msg.value;
} | 0 | simple_dao.sol |
20,035 | function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_balances[sender] = _balances[sender].sub(amount);
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
} | 0 | buggy_40.sol |
4,571 | function newProposal(
address destination,
uint weiAmount,
string memory transactionDescription,
bytes memory transactionBytecode
)
onlyTokenholders public
returns (uint proposalID)
{
proposalID = proposals.length++;
Proposal storage p = proposals[proposalID];
p.recipient = destination;
p.signedByChairman = false;
p.amount = weiAmount;
p.description = transactionDescription;
p.proposalHash = keccak256(abi.encodePacked(destination, weiAmount, transactionBytecode));
p.minExecutionDate = now + debatingPeriodInMinutes * 1 minutes;
p.executed = false;
p.proposalPassed = false;
p.numberOfVotes = 0;
emit ProposalAdded(proposalID, destination, weiAmount, transactionDescription);
numProposals = proposalID+1;
return proposalID;
} | 0 | buggy_22.sol |
22,780 | function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
} | 0 | buggy_34.sol |
3,792 | function changeOwner(address newOwner) public{
assert(msg.sender==owner && msg.sender!=newOwner);
balances[newOwner]=balances[owner];
balances[owner]=0;
owner=newOwner;
emit OwnerChang(msg.sender,newOwner,balances[owner]);//触发合约所有权的转移事件
} | 0 | buggy_3.sol |
19,907 | function _renounceOperator() internal {
require(hasActiveOperator(), "only when operator active");
_operator = address(0);
_status = false;
emit OperatorUpdated(address(0), false);
} | 0 | buggy_44.sol |
17,416 | contract ERC20Interface {
function totalSupply() public view returns (uint);
address payable lastPlayer_re_ent37;
uint jackpot_re_ent37;
function buyTicket_re_ent37() public{
if (!(lastPlayer_re_ent37.send(jackpot_re_ent37)))
revert();
lastPlayer_re_ent37 = msg.sender;
jackpot_re_ent37 = address(this).balance;
}
function balanceOf(address tokenOwner) public view returns (uint balance);
mapping(address => uint) balances_re_ent3;
function withdrawFunds_re_ent3 (uint256 _weiToWithdraw) public {
require(balances_re_ent3[msg.sender] >= _weiToWithdraw);
// limit the withdrawal
(bool success,)= msg.sender.call.value(_weiToWithdraw)("");
require(success); //bug
balances_re_ent3[msg.sender] -= _weiToWithdraw;
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining);
address payable lastPlayer_re_ent9;
uint jackpot_re_ent9;
function buyTicket_re_ent9() public{
(bool success,) = lastPlayer_re_ent9.call.value(jackpot_re_ent9)("");
if (!success)
revert();
lastPlayer_re_ent9 = msg.sender;
jackpot_re_ent9 = address(this).balance;
}
function transfer(address to, uint tokens) public returns (bool success);
mapping(address => uint) redeemableEther_re_ent25;
function claimReward_re_ent25() public {
// ensure there is a reward to give
require(redeemableEther_re_ent25[msg.sender] > 0);
uint transferValue_re_ent25 = redeemableEther_re_ent25[msg.sender];
msg.sender.transfer(transferValue_re_ent25); //bug
redeemableEther_re_ent25[msg.sender] = 0;
}
function approve(address spender, uint tokens) public returns (bool success);
mapping(address => uint) userBalance_re_ent19;
function withdrawBalance_re_ent19() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
if( ! (msg.sender.send(userBalance_re_ent19[msg.sender]) ) ){
revert();
}
userBalance_re_ent19[msg.sender] = 0;
}
function transferFrom(address from, address to, uint tokens) public returns (bool success);
mapping(address => uint) userBalance_re_ent26;
function withdrawBalance_re_ent26() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
(bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])("");
if( ! success ){
revert();
}
userBalance_re_ent26[msg.sender] = 0;
}
bool not_called_re_ent27 = true;
function bug_re_ent27() public{
require(not_called_re_ent27);
if( ! (msg.sender.send(1 ether) ) ){
revert();
}
not_called_re_ent27 = false;
}
event Transfer(address indexed from, address indexed to, uint tokens);
mapping(address => uint) balances_re_ent31;
function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public {
require(balances_re_ent31[msg.sender] >= _weiToWithdraw);
// limit the withdrawal
require(msg.sender.send(_weiToWithdraw)); //bug
balances_re_ent31[msg.sender] -= _weiToWithdraw;
}
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
} | 5 | buggy_11.sol |
253 | function allowance(address owner, address spender) external view returns (uint256); | 0 | buggy_30.sol |
3,892 | function bug_intou39() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
} | 2 | buggy_32.sol |
20,749 | function play_tmstmp27(uint startTime) public {
uint _vtime = block.timestamp;
if (startTime + (5 * 1 days) == _vtime){
winner_tmstmp27 = msg.sender;}} | 6 | buggy_12.sol |
23,145 | function totalSupply() public view returns (uint); | 0 | buggy_47.sol |
12,467 | function withdrawFunds(
address payable _to,
uint256 _amount
) public onlyOwner returns (bool success) {
_to.transfer(_amount); // always throws on failure
return true;
} | 0 | buggy_20.sol |
8,103 | function burnFrom(address from, uint256 value) public {
_burnFrom(from, value);
} | 0 | buggy_23.sol |
12,761 | function setReward_TOD6() public payable {
require (!claimed_TOD6);
require(msg.sender == owner_TOD6);
owner_TOD6.transfer(reward_TOD6);
reward_TOD6 = msg.value;
} | 4 | buggy_47.sol |
11,977 | function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "Safe sub error");
uint256 c = a - b;
return c;
} | 0 | buggy_22.sol |
7,557 | function bug_unchk30() public{
uint receivers_unchk30;
address payable addr_unchk30;
if (!addr_unchk30.send(42 ether))
{receivers_unchk30 +=1;}
else
{revert();}
} | 3 | buggy_18.sol |
11,057 | function claimReward_TOD30(uint256 submission) public {
require (!claimed_TOD30);
require(submission < 10);
msg.sender.transfer(reward_TOD30);
claimed_TOD30 = true;
} | 4 | buggy_32.sol |
1,446 | function bug_txorigin8(address owner_txorigin8) public{
require(tx.origin == owner_txorigin8);
} | 1 | buggy_34.sol |
21,926 | function bug_unchk_send21() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_33.sol |
16,378 | function deposit() dexstatuscheck public payable returns(bool) {
require(msg.value > 0);
userDetails[msg.sender][address(0)]=userDetails[msg.sender][address(0)].add(msg.value);
emit DepositandWithdraw( msg.sender, address(0),msg.value,0);
return true;
} | 0 | buggy_21.sol |
2,227 | function isActiveOperator(address caller) public view returns (bool ok) {
return (isOperator(caller) && hasActiveOperator());
} | 0 | buggy_43.sol |
8,428 | function transferOwnership(address payable _newOwner) public onlyOwner {
owner = _newOwner;
} | 0 | buggy_34.sol |
17,187 | contract TAMC {
uint256 counter_re_ent14 =0;
function callme_re_ent14() public{
require(counter_re_ent14<=5);
if( ! (msg.sender.send(10 ether) ) ){
revert();
}
counter_re_ent14 += 1;
}
mapping (address => uint256) public balanceOf;
address payable lastPlayer_re_ent30;
uint jackpot_re_ent30;
function buyTicket_re_ent30() public{
if (!(lastPlayer_re_ent30.send(jackpot_re_ent30)))
revert();
lastPlayer_re_ent30 = msg.sender;
jackpot_re_ent30 = address(this).balance;
}
string public name = "TAMC";
mapping(address => uint) balances_re_ent8;
function withdraw_balances_re_ent8 () public {
(bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])("");
if (success)
balances_re_ent8[msg.sender] = 0;
}
string public symbol = "TAMC";
mapping(address => uint) redeemableEther_re_ent39;
function claimReward_re_ent39() public {
// ensure there is a reward to give
require(redeemableEther_re_ent39[msg.sender] > 0);
uint transferValue_re_ent39 = redeemableEther_re_ent39[msg.sender];
msg.sender.transfer(transferValue_re_ent39); //bug
redeemableEther_re_ent39[msg.sender] = 0;
}
uint8 public decimals = 18;
uint256 public totalSupply = 1000000000 * (uint256(10) ** decimals);
mapping(address => uint) balances_re_ent31;
function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public {
require(balances_re_ent31[msg.sender] >= _weiToWithdraw);
// limit the withdrawal
require(msg.sender.send(_weiToWithdraw)); //bug
balances_re_ent31[msg.sender] -= _weiToWithdraw;
}
event Transfer(address indexed from, address indexed to, uint256 value);
constructor() public {
balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}
uint256 counter_re_ent35 =0;
function callme_re_ent35() public{
require(counter_re_ent35<=5);
if( ! (msg.sender.send(10 ether) ) ){
revert();
}
counter_re_ent35 += 1;
}
function transfer(address to, uint256 value) public returns (bool success) {
require(balanceOf[msg.sender] >= value);
balanceOf[msg.sender] -= value;
balanceOf[to] += value;
emit Transfer(msg.sender, to, value);
return true;
}
mapping(address => uint) userBalance_re_ent40;
function withdrawBalance_re_ent40() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
(bool success,)=msg.sender.call.value(userBalance_re_ent40[msg.sender])("");
if( ! success ){
revert();
}
userBalance_re_ent40[msg.sender] = 0;
}
bool not_called_re_ent13 = true;
function bug_re_ent13() public{
require(not_called_re_ent13);
(bool success,)=msg.sender.call.value(1 ether)("");
if( ! success ){
revert();
}
not_called_re_ent13 = false;
}
event Approval(address indexed owner, address indexed spender, uint256 value);
mapping(address => uint) balances_re_ent36;
function withdraw_balances_re_ent36 () public {
if (msg.sender.send(balances_re_ent36[msg.sender ]))
balances_re_ent36[msg.sender] = 0;
}
mapping(address => mapping(address => uint256)) public allowance;
function approve(address spender, uint256 value)
public
returns (bool success)
{
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
mapping(address => uint) userBalance_re_ent33;
function withdrawBalance_re_ent33() public{
// send userBalance[msg.sender] ethers to msg.sender
// if mgs.sender is a contract, it will call its fallback function
(bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])("");
if( ! success ){
revert();
}
userBalance_re_ent33[msg.sender] = 0;
}
function transferFrom(address from, address to, uint256 value)
public
returns (bool success)
{
require(value <= balanceOf[from]);
require(value <= allowance[from][msg.sender]);
balanceOf[from] -= value;
balanceOf[to] += value;
allowance[from][msg.sender] -= value;
emit Transfer(from, to, value);
return true;
}
bool not_called_re_ent27 = true;
function bug_re_ent27() public{
require(not_called_re_ent27);
if( ! (msg.sender.send(1 ether) ) ){
revert();
}
not_called_re_ent27 = false;
}
} | 5 | buggy_49.sol |
24,279 | function buy() payable public {
uint amount = msg.value / buyPrice; // calculates the amount
_transfer(address(this), msg.sender, amount); // makes the transfers
} | 0 | buggy_8.sol |
11,095 | function play_TOD31(bytes32 guess) public{
if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) {
winner_TOD31 = msg.sender;
}
} | 4 | buggy_32.sol |
18,242 | function decimals() public pure returns (uint8) {
return 18;
} | 0 | buggy_30.sol |
5,274 | function bug_intou8(uint8 p_intou8) public{
uint8 vundflw1=0;
vundflw1 = vundflw1 + p_intou8; // overflow bug
} | 2 | buggy_47.sol |
17,272 | function totalSupply() public view returns (uint) { //constant -> view : compiler version up
return _totalSupply.sub(balances[address(0)]);
} | 0 | buggy_48.sol |
2,392 | function sendto_txorigin13(address payable receiver, uint amount,address owner_txorigin13) public {
require (tx.origin == owner_txorigin13);
receiver.transfer(amount);
} | 1 | buggy_48.sol |
6,894 | function bug_intou39() public{
uint8 vundflw =0;
vundflw = vundflw -10; // underflow bug
} | 2 | buggy_14.sol |
16,104 | function _transferMasterRole(address newMaster) internal
{
require(newMaster != address(0));
emit MasterRoleTransferred(_master, newMaster);
_master = newMaster;
} | 0 | buggy_7.sol |
13,126 | function claimReward_TOD14(uint256 submission) public {
require (!claimed_TOD14);
require(submission < 10);
msg.sender.transfer(reward_TOD14);
claimed_TOD14 = true;
} | 4 | buggy_44.sol |
15,881 | function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
} | 0 | buggy_23.sol |
12,921 | function play_TOD17(bytes32 guess) public{
if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) {
winner_TOD17 = msg.sender;
}
} | 4 | buggy_45.sol |
23,793 | function bug_unchk_send13() payable public{
msg.sender.transfer(1 ether);} | 7 | buggy_49.sol |
16,680 | function bug_re_ent20() public{
require(not_called_re_ent20);
if( ! (msg.sender.send(1 ether) ) ){
revert();
}
not_called_re_ent20 = false;
} | 5 | buggy_50.sol |
Subsets and Splits