CVE-2018-14404

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Summary

CVECVE-2018-14404
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-07-19 13:29:00 UTC
Updated2026-10-14 07:16:42 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem Types: CWE-476 | n/a | CWE-476 CWE-476 NULL Pointer Dereference

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Debian Debian Linux - All All All
Application Xmlsoft Libxml2 All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] [DLA 1524-1] libxml2 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
USN-3739-1: libxml2 vulnerabilities | Ubuntu security notices af854a3a-2127-422b-91ae-364da2661108 usn.ubuntu.com Third Party Advisory
CVE-2018-14404 Libxml2 Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
NULL pointer deref in xpath.c:xmlXPathCompOpEval() (#10) · Issues · GNOME / libxml2 · GitLab af854a3a-2127-422b-91ae-364da2661108 gitlab.gnome.org Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
USN-3739-2: libxml2 vulnerabilities | Ubuntu security notices af854a3a-2127-422b-91ae-364da2661108 usn.ubuntu.com Third Party Advisory
1595985 – (CVE-2018-14404) CVE-2018-14404 libxml2: NULL pointer dereference in xpath.c:xmlXPathCompOpEval() can allow attackers to cause a denial of service af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
[SECURITY] [DLA 2369-1] libxml2 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
#901817 - libxml2: CVE-2018-14404: NULL pointer deref in xpath.c:xmlXPathCompOpEval() - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 296087 Oracle Solaris 11.4 Support Repository Update (SRU) 8.1.5 Missing (CPUAPR2019)
  • 377223 Alibaba Cloud Linux Security Update for libxml2 (ALINUX2-SA-2020:0077)
  • 500349 Alpine Linux Security Update for libxml2
  • 504112 Alpine Linux Security Update for libxml2
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)

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