CVE-2023-40014

published 2023-08-10

CVE-2023-40014: OpenZeppelin Contracts is a library for secure smart contract development. Starting in version 4.0.0 and prior to version 4.9.3, contracts using…

Priority P4 25 medium 5.3 CVSS 3.1

AV N AC L PR N UI N S U C N I L A N

OpenZeppelin Contracts is a library for secure smart contract development. Starting in version 4.0.0 and prior to version 4.9.3, contracts using `ERC2771Context` along with a custom trusted forwarder may see `_msgSender` return `address(0)` in calls that originate from the forwarder with calldata shorter than 20 bytes. This combination of circumstances does not appear to be common, in particular it is not the case for `MinimalForwarder` from OpenZeppelin Contracts, or any deployed forwarder the team is aware of, given that the signer address is appended to all calls that originate from these forwarders. The problem has been patched in v4.9.3.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
openzeppelin	contracts	>= 4.0.0 < 4.9.3	4.9.3
openzeppelin	contracts-upgradeable	>= 4.0.0 < 4.9.3	4.9.3
openzeppelin	openzeppelin-contracts	—	—
openzeppelin	openzeppelin_contracts	>= 4.0.0 < 4.9.3	4.9.3
openzeppelin	openzeppelin_contracts-upgradable	>= 4.0.0 < 4.9.3	4.9.3

CVSS provenance

nvd v3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

osv 5.3 MEDIUM

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