7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.001 Low
EPSS
Percentile
26.5%
OpenZeppelin Contracts is a library for smart contract development. Versions 4.0.0 until 4.7.1 are vulnerable to ERC165Checker reverting instead of returning false
. ERC165Checker.supportsInterface
is designed to always successfully return a boolean, and under no circumstance revert. However, an incorrect assumption about Solidity 0.8’s abi.decode
allows some cases to revert, given a target contract that doesn’t implement EIP-165 as expected, specifically if it returns a value other than 0 or 1. The contracts that may be affected are those that use ERC165Checker
to check for support for an interface and then handle the lack of support in a way other than reverting. The issue was patched in version 4.7.1.
Vendor | Product | Version | CPE |
---|---|---|---|
openzeppelin | openzeppelin_contracts | * | cpe:2.3:a:openzeppelin:openzeppelin_contracts:*:*:*:*:*:*:*:* |
[
{
"product": "openzeppelin-contracts",
"vendor": "OpenZeppelin",
"versions": [
{
"status": "affected",
"version": ">= 4.0.0, < 4.7.1"
}
]
}
]
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