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OpenZeppelin Contracts and Contracts Upgradeable duplicated execution of subcalls in v4.9.4

Moderate severity GitHub Reviewed Published Dec 8, 2023 in OpenZeppelin/openzeppelin-contracts • Updated Dec 12, 2023

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/contracts@4.9.4 and @openzeppelin/contracts-upgradeable@4.9.4 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

@Amxx 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

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.051%
(21st percentile)

Weaknesses

CVE ID

CVE-2023-49798

GHSA ID

GHSA-699g-q6qh-q4v8

Source code

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