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Medium · 5.3 CVE-2024-35229 EUVD-2024-35250

ZKsync Era evaluation order of Yul function arguments

Published May 27, 2024 · Updated Sep 3, 2024 · Assigned by GitHub_M

Description

ZKsync Era is a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum. Prior to version 1.3.10, there is a very specific pattern `f(a(),b()); check_if_a_executed_last()` in Yul that exposes a bug in evaluation order of Yul function arguments. This vulnerability has been fixed in version 1.3.10. As a workaround, update and redeploy affected contracts.

Affected products

VendorProductAffectedFixed
matter-labs era-compiler-solidity < 1.3.10 —

References