Code injection

The transferFrom function of a smart contract implementation for Useless Ethereum Token UET, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer all victims' balances into their account because certain computations involving value are incorrect, as exploited in the wild...

CVE-2018-10468

CVE-2018-10468 affects the Useless Ethereum Token (UET) ERC20 contract. The transferFrom function mishandles calculations involving _value, enabling an attacker to steal funds (e.g., drain victims’ balances). Exploitation has been observed in the wild since 2017-12. Related tokens (e.g., DimonCoi...

CVE-2018-10468

The transferFrom function of a smart contract implementation for Useless Ethereum Token UET, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer all victims' balances into their account because certain computations involving value are incorrect, as exploited in the wild...

New batchOverflow Bug in Multiple ERC20 Smart Contracts (CVE-2018–10299)

Built on our earlier efforts in analyzing EOS tokens, we have developed an automated system to scan and analyze Ethereum-based ERC-20 token transfers. Specifically, our system will automatically send out alerts if any suspicious transactions e.g., involving unreasonably large tokens occur. In...

New proxyOverflow Bug in Multiple ERC20 Smart Contracts (CVE-2018-10376)

On 4/24/2018, 01:17:50 p.m. UTC, PeckShield again detected an unusual MESH token transaction shown in Figure 1. In this particular transaction, someone transferred a large amount of MESH token — 0x8fff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff 63 f’s to herself...

Beauty Ecosystem Coin smart contract integer overflow vulnerability

Beauty Ecosystem Coin BEC is a virtual currency system based on blockchain technology by the Beauty Chain Foundation. smart contract is one of the smart contracts. An integer overflow vulnerability exists in the 'batchTransfer' function of the smart contract implementation in BEC. An attacker cou...

CVE-2018-10299

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin BEC, the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two receivers arguments in...

CVE-2018-10299

Beauty Ecosystem Coin (BEC) smart-contract vulnerability: batchTransfer suffers an integer overflow when calculating the amount as the product of cnt and _value, enabling an attacker to inflate balances for two _receivers with a large _value. The issue is documented as batchOverflow and was obser...

CVE-2018-10299

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin BEC, the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two receivers arguments in...

VulnCheck KEV: CVE-2018-10299

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin BEC, the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two receivers...

Out-of-bounds

An exploitable information leak/denial of service vulnerability exists in the libevm Ethereum Virtual Machine create2 opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker can...

CVE-2017-14457

An exploitable information leak/denial of service vulnerability exists in the libevm Ethereum Virtual Machine create2 opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker can...

CVE-2017-14457

The CVE-2017-14457 issue impacts CPP-Ethereum’s libevm create2 opcode handler. A crafted contract can set an extremely large initSize passed to the bytesConstRef used to compute the create2 hash, enabling an out-of-bounds read that can cause memory disclosure or a denial of service. Talos and CVE...

CVE-2017-14457

An exploitable information leak/denial of service vulnerability exists in the libevm Ethereum Virtual Machine create2 opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker can...

PT-2018-5654 · Ethereum · Cpp-Ethereum

Name of the Vulnerable Software and Affected Versions: CPP-Ethereum affected versions not specified Description: An exploitable information leak/denial of service issue exists in the libevm Ethereum Virtual Machine create2 opcode handler. A specially crafted smart contract code can cause an...

CPP-Ethereum libevm create2 Information Leak Vulnerability(CVE-2017-14457)

Summary An exploitable information leak / denial of service vulnerability exists in the libevm Ethereum Virtual Machine create2 opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker ca...

CPP-Ethereum libevm pow2N Code Execution Vulnerability

Summary An exploitable out-of-bounds read vulnerability exists in libevm Ethereum Virtual Machine of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read which can subsequently trigger an out-of-bounds write resulting in remote code execution. An attacker can...

CPP-Ethereum libevm create2 Information Leak Vulnerability

Summary An exploitable information leak / denial of service vulnerability exists in the libevm Ethereum Virtual Machine create2 opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker ca...

Coinbase: Ethereum account balance manipulation

The researchers noticed an issue with our ETH receiving code when receiving from a contract. This allowed sending of ETH to Coinbase to be credited even if the underlying contract execution failed. The issue was fixed by changing the contract handling logic. Analysis of the issue indicated only...