GHSA-g4vp-m682-qqmp
Dashboard / Vulnerabilities / GHSA-g4vp-m682-qqmp
Summary: OpenZeppelin Contracts vulnerable to Improper Escaping of Output
Details: ### Impact 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. ### Patches The problem has been patched in v4.9.3.
References: https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-g4vp-m682-qqmp, https://nvd.nist.gov/vuln/detail/CVE-2023-40014, https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4481, https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4484, https://github.com/OpenZeppelin/openzeppelin-contracts/commit/9445f96223041abf2bf08daa56f8da50b674cbcd, https://github.com/OpenZeppelin/openzeppelin-contracts/commit/e4435eed757d4309436b1e06608e97b6d6e2fdb5, https://github.com/OpenZeppelin/openzeppelin-contracts, https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.9.3/CHANGELOG.md, https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.9.3
Affected packages
Package
Name: @openzeppelin/contracts
Purl: pkg:npm/%40openzeppelin/contracts
Affected ranges
Type: SEMVER
Events:
