FKIE_CVE-2018-14404

Vulnerability from fkie_nvd - Published: 2018-07-19 13:29 - Updated: 2026-06-17 01:40
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
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.
References
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:1543
cve@mitre.orghttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817Mailing List, Third Party Advisory
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1595985Issue Tracking, Third Party Advisory
cve@mitre.orghttps://gitlab.gnome.org/GNOME/libxml2/issues/10Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20190719-0002/
cve@mitre.orghttps://usn.ubuntu.com/3739-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3739-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1543
af854a3a-2127-422b-91ae-364da2661108https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1595985Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.gnome.org/GNOME/libxml2/issues/10Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190719-0002/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3739-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3739-2/Third Party Advisory
Impacted products
Vendor Product Version
canonical ubuntu_linux 12.04
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
debian debian_linux -
xmlsoft libxml2 *
To clipboard 

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      "value": "Existe una vulnerabilidad de desreferencia de puntero NULL en la funci\u00f3n xpath.c:xmlXPathCompOpEval() de libxml2 hasta la versi\u00f3n 2.9.8 al analizar una expresi\u00f3n XPath inv\u00e1lida en los casos XPATH_OP_AND o XPATH_OP_OR. Las aplicaciones que procesan entradas de formato XLS no fiables mediante la biblioteca libxml2 podr\u00edan ser vulnerables a un ataque de denegaci\u00f3n de servicio (DoS) debido al cierre inesperado de la aplicaci\u00f3n."
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  "id": "CVE-2018-14404",
  "lastModified": "2026-06-17T01:40:57.037",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.