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CVE-2023-40583— libp2p nodes vulnerable to OOM attack

Quick assessment

Affected
libp2p go-libp2p
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.

go-libp2p是Go中的libp2p实现。 go-libp2p 0.27.3及之前版本存在资源管理错误漏洞，该漏洞源于允许攻击者使用签名的对等记录在远程节点的内存中存储任意数量的数据。

CVSS 7.5 · High EPSS 0.95% · P61
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I. Basic Information for CVE-2023-40583

Vulnerability Information
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Vulnerability Title
libp2p nodes vulnerable to OOM attack
Source: CVE Program / CVE List V5
Vulnerability Description
libp2p is a networking stack and library modularized out of The IPFS Project, and bundled separately for other tools to use. In go-libp2p, by using signed peer records a malicious actor can store an arbitrary amount of data in a remote node’s memory. This memory does not get garbage collected and so the victim can run out of memory and crash. If users of go-libp2p in production are not monitoring memory consumption over time, it could be a silent attack i.e. the attacker could bring down nodes over a period of time (how long depends on the node resources i.e. a go-libp2p node on a virtual server with 4 gb of memory takes about 90 sec to bring down; on a larger server, it might take a bit longer.) This issue was patched in version 0.27.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
go-libp2p 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-libp2p是Go中的libp2p实现。 go-libp2p 0.27.3及之前版本存在资源管理错误漏洞，该漏洞源于允许攻击者使用签名的对等记录在远程节点的内存中存储任意数量的数据。
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
libp2p go-libp2p < 0.27.4 -

II. Public POCs for CVE-2023-40583

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8291 chars
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III. Intelligence Information for CVE-2023-40583

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Patches & Fixes for CVE-2023-40583 (1)

Vendor Advisories for CVE-2023-40583 (1)

Other References for CVE-2023-40583 (2)

IV. Related Vulnerabilities

Same product: go-libp2p
Same vendor: libp2p
Same weakness: CWE-400

V. Comments for CVE-2023-40583

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