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CVE-2017-20165— debug-js debug node.js useColors redos

Quick assessment

Affected
debug-js debug
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.

debug是Debug.js开源的一个以 Node.js 核心调试技术为模型的小型 JavaScript 调试实用程序。 debug 3.1.0之前版本存在安全漏洞，该漏洞源于文件 src/node.js 的函数 useColors， 对参数 str 的操作导致低效的正则表达式复杂性。

CVSS 3.5 · Low EPSS 2.05% · P81

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2017-20165

Vulnerability Information
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Vulnerability Title
debug-js debug node.js useColors redos
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as problematic has been found in debug-js debug up to 3.0.x. This affects the function useColors of the file src/node.js. The manipulation of the argument str leads to inefficient regular expression complexity. Upgrading to version 3.1.0 is able to address this issue. The identifier of the patch is c38a0166c266a679c8de012d4eaccec3f944e685. It is recommended to upgrade the affected component. The identifier VDB-217665 was assigned to this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
debug 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
debug是Debug.js开源的一个以 Node.js 核心调试技术为模型的小型 JavaScript 调试实用程序。 debug 3.1.0之前版本存在安全漏洞，该漏洞源于文件 src/node.js 的函数 useColors， 对参数 str 的操作导致低效的正则表达式复杂性。
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
debug-js debug 3.0 -

II. Public POCs for CVE-2017-20165

# POC Description Source Link Shenlong Link
1 Fork of the send module to deal with CVE-2017-20165 https://github.com/fastify/send POC Details
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III. Intelligence Information for CVE-2017-20165

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Patches & Fixes for CVE-2017-20165 (2)

Vendor Advisories for CVE-2017-20165 (2)

Other References for CVE-2017-20165 (1)

IV. Related Vulnerabilities

Same product: debug
Same vendor: debug-js
Same weakness: CWE-1333

V. Comments for CVE-2017-20165

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