10 results (0.034 seconds)

CVSS: 5.9EPSS: 0%CPEs: 2EXPL: 0

16 Jun 2023 — OpenZeppelin Contracts is a library for smart contract development. Starting in version 4.7.0 and prior to version 4.9.2, when the `verifyMultiProof`, `verifyMultiProofCalldata`, `procesprocessMultiProof`, or `processMultiProofCalldat` functions are in use, it is possible to construct merkle trees that allow forging a valid multiproof for an arbitrary set of leaves. A contract may be vulnerable if it uses multiproofs for verification and the merkle tree that is processed includes a node with value 0 at dept... • https://github.com/OpenZeppelin/openzeppelin-contracts/commit/4d2383e17186be3e8ccf5a442e9686ecc7de1c55 • CWE-354: Improper Validation of Integrity Check Value •

CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0

07 Jun 2023 — OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the `Governor` contract in v4.9.0 only, and the `GovernorCompatibilityBravo` contract since v4.3.0. This problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. • https://github.com/OpenZeppelin/openzeppelin-contracts/commit/d9474327a492f9f310f31bc53f38dbea56ed9a57 • CWE-862: Missing Authorization •

CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0

17 Apr 2023 — OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an accidental clash is negligible, but one could be caused deliberately and could cause a reduction in availability. ... • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4154 • CWE-436: Interpretation Conflict •

CVSS: 9.0EPSS: 0%CPEs: 2EXPL: 0

16 Apr 2023 — OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal pa... • https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3 • CWE-20: Improper Input Validation •

CVSS: 7.9EPSS: 0%CPEs: 2EXPL: 0

14 Aug 2022 — OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or... • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610 • CWE-354: Improper Validation of Integrity Check Value •

CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0

01 Aug 2022 — OpenZeppelin Contracts is a library for secure smart contract development. The target contract of an EIP-165 `supportsInterface` query can cause unbounded gas consumption by returning a lot of data, while it is generally assumed that this operation has a bounded cost. The issue has been fixed in v4.7.2. Users are advised to upgrade. There are no known workarounds for this issue. • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3587 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0

01 Aug 2022 — OpenZeppelin Contracts is a library for secure smart contract development. Contracts using the cross chain utilities for Arbitrum L2, `CrossChainEnabledArbitrumL2` or `LibArbitrumL2`, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This issue has been patched in v4.7.2. Users are advised to upgrade. There are no known workarounds for this issue. • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3578 • CWE-669: Incorrect Resource Transfer Between Spheres •

CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0

01 Aug 2022 — OpenZeppelin Contracts is a library for secure smart contract development. This issue concerns instances of Governor that use the module `GovernorVotesQuorumFraction`, a mechanism that determines quorum requirements as a percentage of the voting token's total supply. In affected instances, when a proposal is passed to lower the quorum requirements, past proposals may become executable if they had been defeated only due to lack of quorum, and the number of votes it received meets the new quorum requirement. ... • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561 • CWE-682: Incorrect Calculation •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

21 Jul 2022 — 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 co... • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552 • CWE-20: Improper Input Validation CWE-252: Unchecked Return Value •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

21 Jul 2022 — OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. `SignatureChecker.isValidSignatureNow` is not expected to 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-1271 as expected. The contracts that may be affected are those that use `SignatureChecker` to check the validity of a signature and handle invalid signatu... • https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552 • CWE-20: Improper Input Validation CWE-347: Improper Verification of Cryptographic Signature •