Headline
GHSA-699g-q6qh-q4v8: OpenZeppelin Contracts and Contracts Upgradeable duplicated execution of subcalls in v4.9.4
Context
Merge conflict resolution issue when porting the v5.0.1 Multicall update to the v4.9 branch caused a duplicated line.
Impact
Versions using Multicall from @openzeppelin/[email protected] and @openzeppelin/[email protected] will execute each subcall twice. Concretely, this exposes a user to unintentionally duplicate operations like asset transfers.
Patches
The duplicated delegatecall was removed in 4.9.5. The 4.9.4 version is marked as deprecated.
Package
npm @openzeppelin/contracts (npm)
Affected versions
= 4.9.4
Patched versions
4.9.5
npm @openzeppelin/contracts-upgradeable (npm)
= 4.9.4
4.9.5
Description
Context
Merge conflict resolution issue when porting the v5.0.1 Multicall update to the v4.9 branch caused a duplicated line.
Impact
Versions using Multicall from @openzeppelin/[email protected] and @openzeppelin/[email protected] will execute each subcall twice. Concretely, this exposes a user to unintentionally duplicate operations like asset transfers.
Patches
The duplicated delegatecall was removed in 4.9.5. The 4.9.4 version is marked as deprecated.
References
- GHSA-699g-q6qh-q4v8
- https://nvd.nist.gov/vuln/detail/CVE-2023-49798
- OpenZeppelin/openzeppelin-contracts-upgradeable@31f9fb9
- OpenZeppelin/openzeppelin-contracts@88ac712
Amxx published to OpenZeppelin/openzeppelin-contracts
Dec 8, 2023
Published by the National Vulnerability Database
Dec 9, 2023
Published to the GitHub Advisory Database
Dec 12, 2023
Reviewed
Dec 12, 2023
Last updated
Dec 12, 2023
Related news
OpenZeppelin Contracts is a library for smart contract development. A merge issue when porting the 5.0.1 patch to the 4.9 branch caused a line duplication. In the version of `Multicall.sol` released in `@openzeppelin/[email protected]` and `@openzeppelin/[email protected]`, all subcalls are executed twice. Concretely, this exposes a user to unintentionally duplicate operations like asset transfers. The duplicated delegatecall was removed in version 4.9.5. The 4.9.4 version is marked as deprecated. Users are advised to upgrade. There are no known workarounds for this issue.