CVE-2024-35229

MEDIUM5.3

ZKsync Era evaluation order of Yul function arguments

Published May 27, 2024

Modified 1 years ago

Details

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.

References

WEB

https://github.com/matter-labs/era-compiler-solidity/commit/46ce047b51576495779b9f67534207d8154eab79

WEB

https://github.com/matter-labs/era-compiler-solidity/security/advisories/GHSA-jf9w-7f5g-j95p

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2024-35229

CVSS Analysis

CVSS v3.1

5.3

Exploitability

Attack Vector