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CVE-2022-24839— Uncontrolled Resource Consumption in org.cyberneko.html (nokogiri fork)

Quick assessment

Affected
sparklemotion nekohtml
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.

nekohtml是一个简单地HTML扫描器和标签补偿器。 nekohtml存在资源管理错误漏洞,该漏洞源于Nokogiri(Rubygem)使用的“org.cyberneko.html”在解析格式错误的HTML标记时引发了一个“java.lang.OutOfMemoryError”异常。

CVSS 7.5 · High EPSS 2.15% · P80

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-24839

Vulnerability Information

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Vulnerability Title
Uncontrolled Resource Consumption in org.cyberneko.html (nokogiri fork)
Source: CVE Program / CVE List V5
Vulnerability Description
org.cyberneko.html is an html parser written in Java. The fork of `org.cyberneko.html` used by Nokogiri (Rubygem) raises a `java.lang.OutOfMemoryError` exception when parsing ill-formed HTML markup. Users are advised to upgrade to `>= 1.9.22.noko2`. Note: The upstream library `org.cyberneko.html` is no longer maintained. Nokogiri uses its own fork of this library located at https://github.com/sparklemotion/nekohtml and this CVE applies only to that fork. Other forks of nekohtml may have a similar vulnerability.
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
nekohtml资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nekohtml是一个简单地HTML扫描器和标签补偿器。 nekohtml存在资源管理错误漏洞,该漏洞源于Nokogiri(Rubygem)使用的“org.cyberneko.html”在解析格式错误的HTML标记时引发了一个“java.lang.OutOfMemoryError”异常。
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
sparklemotion nekohtml < 1.9.22.noko2 -

II. Public POCs for CVE-2022-24839

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III. Intelligence Information for CVE-2022-24839

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Patches & Fixes for CVE-2022-24839 (1)

Vendor Advisories for CVE-2022-24839 (2)

IV. Related Vulnerabilities

V. Comments for CVE-2022-24839

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