CVE-2022-29181

Improper Handling of Unexpected Data Type in Nokogiri

Severity Score

8.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.

Nokogiri es una biblioteca XML y HTML de código abierto para Ruby. En versiones anteriores a 1.13.6, Nokogiri no comprobaba todas las entradas en los analizadores SAX de XML y HTML4, lo que permitía que entradas no confiables especialmente diseñadas causaran errores de acceso a memoria ilegales (segfault) o lecturas de memoria no relacionadas. La versión 1.13.6 contiene un parche para este problema. Como mitigación, asegúrese de que la entrada no confiable es una "String" llamando a "#to_s" o su equivalente

A flaw was found in the rubygem-nokogiri package. This flaw allows malicious users to change partial contents or configurations on the system. Additionally, this vulnerability can also cause a limited denial of service in the form of interruptions in resource availability.

Multiple vulnerabilities have been discovered in Nokogiri, the worst of which could result in denial of service. Versions less than 1.13.6 are affected.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-04-13 CVE Reserved
2022-05-20 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-241: Improper Handling of Unexpected Data Type
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (9)

URL	Tag	Source
http://seclists.org/fulldisclosure/2022/Dec/23	Mailing List
https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6	Release Notes
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m	Issue Tracking
https://support.apple.com/kb/HT213532	Third Party Advisory

URL	Date	SRC
https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri	2024-08-03

URL	Date	SRC
https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267	2023-02-16

URL	Date	SRC
https://security.gentoo.org/glsa/202208-29	2023-02-16
https://access.redhat.com/security/cve/CVE-2022-29181	2022-11-16
https://bugzilla.redhat.com/show_bug.cgi?id=2088684	2022-11-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nokogiri Search vendor "Nokogiri"		Nokogiri Search vendor "Nokogiri" for product "Nokogiri"				< 1.13.6 Search vendor "Nokogiri" for product "Nokogiri" and version " < 1.13.6"		ruby		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 13.0 < 13.1 Search vendor "Apple" for product "Macos" and version " >= 13.0 < 13.1"		-		Affected