Skip to content

XML Injection in Xerces Java affects Nokogiri

Moderate severity GitHub Reviewed Published Apr 11, 2022 in sparklemotion/nokogiri • Updated Jan 11, 2023

Package

bundler nokogiri (RubyGems)

Affected versions

< 1.13.4

Patched versions

1.13.4

Description

Summary

Nokogiri v1.13.4 updates the vendored xerces:xercesImpl from 2.12.0 to 2.12.2, which addresses CVE-2022-23437. That CVE is scored as CVSS 6.5 "Medium" on the NVD record.

Please note that this advisory only applies to the JRuby implementation of Nokogiri < 1.13.4.

Mitigation

Upgrade to Nokogiri >= v1.13.4.

Impact

CVE-2022-23437 in xerces-J

  • Severity: Medium
  • Type: CWE-91 XML Injection (aka Blind XPath Injection)
  • Description: There's a vulnerability within the Apache Xerces Java (XercesJ) XML parser when handling specially crafted XML document payloads. This causes, the XercesJ XML parser to wait in an infinite loop, which may sometimes consume system resources for prolonged duration. This vulnerability is present within XercesJ version 2.12.1 and the previous versions.
  • See also: GHSA-h65f-jvqw-m9fj

References

@flavorjones flavorjones published to sparklemotion/nokogiri Apr 11, 2022
Published to the GitHub Advisory Database Apr 11, 2022
Reviewed Apr 11, 2022
Last updated Jan 11, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-xxx9-3xcr-gjj3

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.