CVE-2022-23476

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 v3.0 7.5 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/sparklemotion/nokogiri/commit/9fe0761c47c0d4270d1a5220cfd25de080350d50	Patch Third Party Advisory
https://github.com/sparklemotion/nokogiri/commit/85410e38410f670cbbc8c5b00d07b843caee88ce	Patch Third Party Advisory
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-qv4q-mr5r-qprj	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nokogiri:nokogiri:1.13.9:::::ruby::
	cpe:2.3:a:nokogiri:nokogiri:1.13.8:::::ruby::

Information

Published : 2022-12-07 20:15

Updated : 2022-12-09 19:10

NVD link : CVE-2022-23476

Mitre link : CVE-2022-23476

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

CWE-252

Unchecked Return Value

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Products Affected

nokogiri

nokogiri

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