CVE-2022-23476
December 08, 2022
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.
Affected Packages
nokogiri (RUBY):
Affected version(s) >=1.13.8 <1.13.10Fix Suggestion:
Update to version 1.13.10Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
EPSS
Base Score:
0.31
