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

Quick assessment

Affected
multiversx mx-chain-go
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mx-chain-go是MultiversX开源的一个 MultiversX 协议的 go 实现。 mx-chain-go 存在资源管理错误漏洞，该漏洞源于当执行中继交易时，如果内部交易失败，则会增加内部交易的发送者帐户随机数，这可能导致对目标帐户进行有限的 DoS 攻击。

CVSS 7.1 · High EPSS 1.32% · P71

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-34458

Vulnerability Information
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Vulnerability Title
mx-chain-go's relayed transactions always increment nonce
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
mx-chain-go 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mx-chain-go是MultiversX开源的一个 MultiversX 协议的 go 实现。 mx-chain-go 存在资源管理错误漏洞，该漏洞源于当执行中继交易时，如果内部交易失败，则会增加内部交易的发送者帐户随机数，这可能导致对目标帐户进行有限的 DoS 攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
multiversx mx-chain-go < 1.4.17 -

II. Public POCs for CVE-2023-34458

# POC Description Source Link Shenlong Link
1 None https://github.com/miguelc49/CVE-2023-34458-2 POC Details
2 None https://github.com/miguelc49/CVE-2023-34458-1 POC Details
3 None https://github.com/miguelc49/CVE-2023-34458-3 POC Details
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9131 chars
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III. Intelligence Information for CVE-2023-34458

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Patches & Fixes for CVE-2023-34458 (1)

Vendor Advisories for CVE-2023-34458 (1)

Other References for CVE-2023-34458 (2)

IV. Related Vulnerabilities

Same product: mx-chain-go
Same vendor: multiversx
Same weakness: CWE-400