Description

OpenZeppelin Contracts is a library for secure smart contract development. The ERC721Consecutive contract designed for minting NFTs in batches does not update balances when a batch has size 1 and consists of a single token. Subsequent transfers from the receiver of that token may overflow the balance as reported by `balanceOf`. The issue exclusively presents with batches of size 1. The issue has been patched in 4.8.2.

Remediation

References

https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594q

https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.2

https://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705

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Severity

High

Classification

CWE-682 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Tags

Third Party Advisory Release Notes Patch