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CVE-2021-39131— Improper Handling of Unexpected Data Type in ced

Quick assessment

Affected
sonicdoe ced
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.

Github ced是一个应用软件。使用 Google 的compact_enc_det库检测字符编码。 Github ced 中存在输入验证错误漏洞，该漏洞源于产品未对用户输入数据类型做有效验证。攻击者可通过向目标发送非Buffer数据导致Nodejs进程崩溃。以下产品及版本受到影响：Sonicdoe Ced v0.1.0 版本。

CVSS 7.5 · High EPSS 1.89% · P78

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-39131

Vulnerability Information
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Vulnerability Title
Improper Handling of Unexpected Data Type in ced
Source: CVE Program / CVE List V5
Vulnerability Description
ced detects character encoding using Google’s compact_enc_det library. In ced v0.1.0, passing data types other than `Buffer` causes the Node.js process to crash. The problem has been patched in ced v1.0.0. As a workaround, before passing an argument to ced, verify it’s a `Buffer` using `Buffer.isBuffer(obj)`.
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
非预期数据类型处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Github ced 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Github ced是一个应用软件。使用 Google 的compact_enc_det库检测字符编码。 Github ced 中存在输入验证错误漏洞，该漏洞源于产品未对用户输入数据类型做有效验证。攻击者可通过向目标发送非Buffer数据导致Nodejs进程崩溃。以下产品及版本受到影响：Sonicdoe Ced v0.1.0 版本。
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
sonicdoe ced < 1.0.0 -

II. Public POCs for CVE-2021-39131

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III. Intelligence Information for CVE-2021-39131

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Patches & Fixes for CVE-2021-39131 (1)

Vendor Advisories for CVE-2021-39131 (1)

Other References for CVE-2021-39131 (1)

IV. Related Vulnerabilities

Same vendor: sonicdoe
Same weakness: CWE-241

V. Comments for CVE-2021-39131

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