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CVE-2022-2529— Multiple DoS Attack Vectors in sflow packet handling

Quick assessment

Affected
Cloudflare goflow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GoFlow是Cloudflare开源的一个 Go 中的 NetFlow/IPFIX/sFlow 收集器。 GoFlow 3.4.4之前版本存在资源管理错误漏洞，该漏洞源于没有进行充分的数据包清理，进程消耗大量内存，从而导致拒绝服务攻击。

CVSS 7.5 · High EPSS 0.95% · P60

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-2529

Vulnerability Information
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Vulnerability Title
Multiple DoS Attack Vectors in sflow packet handling
Source: CVE Program / CVE List V5
Vulnerability Description
sflow decode package does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume large amounts of memory resulting in a denial of service.
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
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
GoFlow 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GoFlow是Cloudflare开源的一个 Go 中的 NetFlow/IPFIX/sFlow 收集器。 GoFlow 3.4.4之前版本存在资源管理错误漏洞，该漏洞源于没有进行充分的数据包清理，进程消耗大量内存，从而导致拒绝服务攻击。
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
Cloudflare goflow unspecified ~ 3.4.4 -

II. Public POCs for CVE-2022-2529

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III. Intelligence Information for CVE-2022-2529

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Vendor Advisories for CVE-2022-2529 (1)

IV. Related Vulnerabilities

Same vendor: Cloudflare
Same weakness: CWE-20

V. Comments for CVE-2022-2529

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