Is CVE-2022-23476 actively exploited?

CVE-2022-23476 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-23476?

CVE-2022-23476 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2022-23476?

Patch guidance is available from nokogiri security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-23476.

Which products are affected by CVE-2022-23476?

2 products: nokogiri nokogiri, nokogiri nokogiri.

Fix CVE-2022-23476 - HIGH nokogiri nokogiri

Description

Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-252 CWE-476 · NULL Pointer Dereference

Metadata

Primary Vendor: NOKOGIRI
Published: 12/8/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2022-23476

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary