Actual yield source check on address will succeed for non-existent contract

Handle 0xRajeev Vulnerability details Impact Low-level calls call/delegatecall/staticcall return true even if the account called is non-existent per EVM design. Solidity documentation warns: "The low-level functions call, delegatecall and staticcall return true as their first return value if the...

Beebots.TradeValid() Will Erroneously Return True When Maker Is Set To Address(0) and makerIds Are Set To The TokenIds of Unminted Beebot NFTs

Handle jvaqa Vulnerability details Impact Beebots.TradeValid Will Erroneously Return True When Maker Is Set To Address0 and makerIds Are Set To The TokenIds of Unminted Beebot NFTs Beebots.verify Returns True No Matter What Signature Is Given When Signer Is Set To address0. This means that...

VVE-2021-0002: Incorrect `returndatasize` when using simple forwarder proxies deployed prior to EIP-1167 adoption

Background @tjayrush reported a data handling issue with certain Web3 libraries using Vyper-deploy forwarder proxy contracts using our Vyper's built-in createforwarderto function prior to our change to support EIP-1167 style forwarder proxies. Impact If you are an end user of a forwarder-style...

Reentrancy Attack

openzeppelin-solidity is vulnerable to reentrancy attack. The vulnerability exists when a extend custom beforeTokenTransfer is invoked when burning tokens and before the send hook is externally called on the sender while token balances are adjusted after the process and this may cause the...

OSV-2020-2131 Stack-use-after-return in solidity::smtutil::CHCSmtLib2Interface::querySolver

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26997 Crash type: Stack-use-after-return READ 8 Crash state: solidity::smtutil::CHCSmtLib2Interface::querySolver solidity::smtutil::CHCSmtLib2Interface::query solidity::frontend::CHC::query...

solidity:strictasm_diff_ossfuzz: Heap-buffer-overflow in solidity::yul::AsmAnalyzer::operator

Project: https://github.com/ethereum/solidity.git Detailed Report: https://oss-fuzz.com/testcase?key=5676096461996032 Project: solidity Fuzzing Engine: libFuzzer Fuzz Target: strictasmdiffossfuzz Job Type: libfuzzerasansolidity Platform Id: linux Crash Type: Heap-buffer-overflow READ 8 Crash...

Slither v0.6.7 - Static Analyzer For Solidity

Slither is a Solidity static analysis framework written in Python 3. It runs a suite of vulnerability detectors, prints visual information about contract details, and provides an API to easily write custom analyses. Slither enables developers to find vulnerabilities, enhance their code...

Echidna - Ethereum Fuzz Testing Framework

Echidna is a weird creature that eats bugs and is highly electrosensitive with apologies to Jacob Stanley More seriously, Echidna is a Haskell library designed for fuzzing/property-based testing of EVM code. It supports relatively sophisticated grammar-based fuzzing campaigns to falsify a variety...

blockapps-vm (>=2.0.0 <=2.1.0), blockapps-web3 (>=1.1.4 <=1.1.6) +11 more potentially affected by CVE-2018-19183 via ethereumjs-vm (>=1.2.1 <=2.4.0)

ethereumjs-vm NPM version =1.2.1, =2.0.0, =1.1.4, =1.1.0, =0.0.2, =1.0.1, =3.0.4, =0.1.1, =0.0.1, =1.1.6, =1.1.41 - newstudio-lib =0.1.0 - remix-solidity =0.0.1 Source cves: CVE-2018-19183 Source advisory: OSV:GHSA-2MW7-WGGM-M6W3...

Slither - Static Analyzer For Solidity

Slither is a Solidity static analysis framework written in Python 3. It runs a suite of vulnerability detectors, prints visual information about contract details, and provides an API to easily write custom analyses. Slither enables developers to find vulnerabilities, enhance their code...

Learn Ethereum Development – Build Decentralized Blockchain Apps

As of today — 1 Bitcoin = $7300 USD Approx 471,000 INR At the beginning of this year, 1 Bitcoin was approximately equal to $1000, and now it has surged to a new height, marking its market capitalization at over $124 billion. Is it really too late to invest in Bitcoin or other cryptocurrencies lik...