A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1524-1 libxml2 security update
Debian DLA Debian DLA DLA-2369-1 libxml2 security update
Github GHSA Github GHSA GHSA-6qvp-r6r3-9p7h Nokogiri NULL Pointer Dereference
Ubuntu USN Ubuntu USN USN-3739-1 libxml2 vulnerabilities
Ubuntu USN Ubuntu USN USN-3739-2 libxml2 vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 03 Dec 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-03T21:07:59.321Z

Reserved: 2018-07-19T00:00:00.000Z

Link: CVE-2018-14404

cve-icon Vulnrichment

Updated: 2024-08-05T09:29:51.525Z

cve-icon NVD

Status : Modified

Published: 2018-07-19T13:29:00.480

Modified: 2025-12-03T21:15:48.723

Link: CVE-2018-14404

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-06-18T00:00:00Z

Links: CVE-2018-14404 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses