nekohtmlproject nekohtml CVE-2022-24839 in Nekohtmlproject and Oracle Products
Published on April 11, 2022

Uncontrolled Resource Consumption in org.cyberneko.html (nokogiri fork)

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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 Note: The upstream library `org.cyberneko.html` is no longer maintained.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.

Github Repository Github Repository NVD

Vulnerability Analysis

CVE-2022-24839 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is a Resource Exhaustion Vulnerability?

The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CVE-2022-24839 has been classified to as a Resource Exhaustion vulnerability or weakness.


Products Associated with CVE-2022-24839

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Nekohtmlproject Nekohtml
 
Oracle Weblogic Server
 

Affected Versions

sparklemotion nekohtml Version < 1.9.22.noko2 is affected by CVE-2022-24839

Vulnerable Packages

The following package name and versions may be associated with CVE-2022-24839

Package Manager Vulnerable Package Versions Fixed In
maven org.nokogiri:nekohtml < 1.9.22.noko2 1.9.22.noko2
rubygems nokogiri < 1.13.4 1.13.4

Exploit Probability

EPSS
0.45%
Percentile
64.10%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.