CVE-2023-34458 HIGH

CVE-2023-34458: mx-chain-go's relayed transactions always increment nonce

Vendor Multiversx
Product mx-chain-go
Weakness CWE-400
Published July 13, 2023
Last update October 22, 2024
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

mx-chain-go is the official implementation of the MultiversX blockchain protocol, written in golang. When executing a relayed transaction, if the inner transaction failed, it would have increased the inner transaction's sender account nonce. This could have contributed to a limited DoS attack on a targeted account. The fix is a breaking change so a new flag `RelayedNonceFixEnableEpoch` was needed. This was a strict processing issue while validating blocks on a chain. This vulnerability has been patched in version 1.4.17.

Key dates

02Disclosure timeline

July 13, 2023 CVE published
October 22, 2024 Record updated