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CVE-2021-39176— Missing Release of Memory after Effective Lifetime in detect-character-encoding

Quick assessment

Affected
sonicdoe detect-character-encoding
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.

detect-character-encoding是开源的一个 C++ 插件。 detect-character-encoding 0.3.0以及之前版本存在安全漏洞，该漏洞源于软件不会释放分配的内存。

CVSS 7.5 · High EPSS 1.89% · P79

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-39176

Vulnerability Information
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Vulnerability Title
Missing Release of Memory after Effective Lifetime in detect-character-encoding
Source: CVE Program / CVE List V5
Vulnerability Description
detect-character-encoding is a package for detecting character encoding using ICU. In detect-character-encoding v0.3.0 and earlier, allocated memory is not released. The problem has been patched in detect-character-encoding v0.3.1.
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
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
detect-character-encoding 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
detect-character-encoding是开源的一个 C++ 插件。 detect-character-encoding 0.3.0以及之前版本存在安全漏洞，该漏洞源于软件不会释放分配的内存。
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 detect-character-encoding < 0.3.1 -

II. Public POCs for CVE-2021-39176

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III. Intelligence Information for CVE-2021-39176

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Patches & Fixes for CVE-2021-39176 (2)

Vendor Advisories for CVE-2021-39176 (1)

Other References for CVE-2021-39176 (1)

IV. Related Vulnerabilities

Same product: detect-character-encoding
Same vendor: sonicdoe
Same weakness: CWE-401

V. Comments for CVE-2021-39176

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