PT-2023-31356 · Openzeppelin · @Openzeppelin/Contracts-Upgradeable+1

Amxx · Published 2023-12-08 · Updated 2023-12-13 · CVE-2023-49798

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions @openzeppelin/contracts versions 4.9.4 @openzeppelin/contracts-upgradeable versions 4.9.4

Description A merge issue when porting the 5.0.1 patch to the 4.9 branch caused a line duplication in the Multicall.sol file. This results in all subcalls being executed twice, exposing users to unintentionally duplicate operations like asset transfers.

Recommendations For @openzeppelin/contracts version 4.9.4, upgrade to version 4.9.5 to resolve the issue. For @openzeppelin/contracts-upgradeable version 4.9.4, upgrade to version 4.9.5 to resolve the issue. As a temporary workaround, consider restricting the use of the Multicall.sol file until a patch is applied.

Exploit

Fix

Weakness Enumeration

CWE-670

Related Identifiers

CVE-2023-49798

GHSA-699G-Q6QH-Q4V8

Affected Products

Openzeppelin Contracts

@Openzeppelin/Contracts-Upgradeable

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49798.json · Exploit
• https://github.com/OpenZeppelin/openzeppelin-contracts/commit/88ac712e06832bce73b41e8166cded2729e25205 · Patch
• https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-699g-q6qh-q4v8 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-699g-q6qh-q4v8 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-49798 · Security Note
• https://osv.dev/vulnerability/CVE-2023-49798 · Vendor Advisory
• https://github.com/OpenZeppelin/openzeppelin-contracts · Note
• https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/31f9fb9d171f60b2271b2b9c6f62d43302bf9489 · Note
• https://twitter.com/CVEnew/status/1733273353262190748 · Twitter Post
• https://t.me/cvenotify/63047 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1733300687453184207 · Twitter Post