CVE-2023-40014

2023-08-1020:15:10

CWE-116

[email protected]

web.nvd.nist.gov

openzeppelin

smart contract

security

vulnerability

erc2771context

forwarder

patch

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

5.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

27.6%

JSON

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 configurations

Vulners

NVD

Node

openzeppelinopenzeppelin_contractsRange4.0.0–4.9.3

VendorProductVersionCPE
openzeppelinopenzeppelin_contracts*cpe:2.3:a:openzeppelin:openzeppelin_contracts:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openzeppelin	openzeppelin_contracts	*	cpe:2.3:a:openzeppelin:openzeppelin_contracts::::::::

CNA Affected

[
  {
    "vendor": "OpenZeppelin",
    "product": "openzeppelin-contracts",
    "versions": [
      {
        "version": ">= 4.0.0, < 4.9.3",
        "status": "affected"
      }
    ]
  }
]