OpenZeppelin 安全漏洞

OpenZeppelin is a software application. A standard for secure blockchain applications. A security vulnerability exists in OpenZeppelin Contracts versions prior to 5.0.2 and prior to 4.9.6, which stems from the fact that the last iteration of the Base64.encode function can read portions of memory...

GHSA-75JP-VQ8X-H4CQ Wasmi Out-of-bounds Write for host to Wasm calls with more than 128 Parameters

Summary In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise arise if the host calls or resumes a Wasm function with more parameters than the default limit 128, as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. Impact After...

Wasmi Out-of-bounds Write for host to Wasm calls with more than 128 Parameters

Summary In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise arise if the host calls or resumes a Wasm function with more parameters than the default limit 128, as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. Impact After...

CVE-2024-27094 OpenZeppelin Contracts base64 encoding may read from potentially dirty memory

OpenZeppelin Contracts is a library for secure smart contract development. The Base64.encode function encodes a bytes input by iterating over it in chunks of 3 bytes. When this input is not a multiple of 3, the last iteration may read parts of the memory that are beyond the input buffer. The...

CVE-2024-27094

OpenZeppelin Contracts Base64.encode has a memory-read flaw when input length is not a multiple of 3, risking corruption of the encoded output. This affects OpenZeppelin Contracts (and upgradeable) prior to versions 5.0.2 and 4.9.6. Remediation: upgrade to 5.0.2 or 4.9.6. No exploit details are p...

CVE-2024-27094 OpenZeppelin Contracts base64 encoding may read from potentially dirty memory

OpenZeppelin Contracts is a library for secure smart contract development. The Base64.encode function encodes a bytes input by iterating over it in chunks of 3 bytes. When this input is not a multiple of 3, the last iteration may read parts of the memory that are beyond the input buffer. The...

PT-2024-21645

Name of the Vulnerable Software and Affected Versions OpenZeppelin Contracts versions prior to 4.9.6 OpenZeppelin Contracts versions prior to 5.0.2 Description The Base64.encode function in OpenZeppelin Contracts encodes a bytes input by iterating over it in chunks of 3 bytes. When this input is...

PYSEC-2024-164

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in abidecode, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potential...

New Leak Shows Business Side of China’s APT Menace

A new data leak that appears to have come from one of Chinas top private cybersecurity firms provides a rare glimpse into the commercial side of Chinas many state-sponsored hacking groups. Experts say the leak illustrates how Chinese government agencies increasingly are contracting out foreign...

Credit Protocol Smart Contracts Security Vulnerability

Credit Protocol Smart Contracts are ethereum smart contracts for debt protocol dApps that facilitate debt tracking between any two parties. A security vulnerability exists in Credit Protocol Smart Contracts that stems from a denial of service due to the presence of the executeUcacTx function in t...

PYSEC-2024-148

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. When calls to external contracts are made, we write the input buffer starting at byte 28, and allocate the return buffer to start at byte 0 overlapping with the input buffer. When checking RETURNDATASIZE for dynamic...

CVE-2024-24560 Vyper external calls can overflow return data to return input buffer

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. When calls to external contracts are made, we write the input buffer starting at byte 28, and allocate the return buffer to start at byte 0 overlapping with the input buffer. When checking RETURNDATASIZE for dynamic...

Vyper Code Issue Vulnerability

Vyper is the Pythonic smart contract language for EVM. A code issue vulnerability exists in Vyper version 0.3.10 and prior versions that stems from not disabling static and delegate calls...

GHSA-2Q8V-3GQQ-4F8P concat built-in can corrupt memory in vyper

Summary concat built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the buildIR for concat doesn't properly adhere to the API of copy functions for =0.3.2 the copybytes function. A contract search was...

CVE-2024-22419

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. The concat built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the buildIR for concat doesn't properly adhere to the API of co...

PYSEC-2024-103

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. The concat built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the buildIR for concat doesn't properly adhere to the API of co...

Vyper Buffer Error Vulnerability

Vyper is a Pythonic smart contract language for EVM open sourced by vyperlang. A buffer error vulnerability exists in Vyper 0.3.10 and earlier versions, which stems from allowing concat to write to memory buffer boundaries built-in, thereby overwriting existing valid data...

[M1] LastDonationBlockNumber should be updated at the beginning of the function to prevent from reentracy attack

Lines of code Vulnerability details Impact The ineffectiveness of an update against a flashloans attack. Analysis of the vulnerability You update lastDonationBlockNumber after every donation. However, you update is done at the end of the function trackServiceDonations function trackServiceDonatio...

Rust EVM erroneousle handles `record_external_operation` error return

Impact In rust-evm, a feature called recordexternaloperation was introduced, allowing library users to record custom gas changes. This feature can have some bogus interactions with the call stack. In particular, during finalization of a CREATE or CREATE2, in the case that the substack execution...

GHSA-27WG-99G8-2V4V Rust EVM erroneousle handles `record_external_operation` error return

Impact In rust-evm, a feature called recordexternaloperation was introduced, allowing library users to record custom gas changes. This feature can have some bogus interactions with the call stack. In particular, during finalization of a CREATE or CREATE2, in the case that the substack execution...