ghsa-6qvp-r6r3-9p7h
Vulnerability from github
Published
2019-01-17 14:05
Modified
2023-08-26 00:01
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Nokogiri NULL Pointer Dereference
Details

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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{
   affected: [
      {
         package: {
            ecosystem: "RubyGems",
            name: "nokogiri",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "1.8.5",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2018-14404",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-476",
      ],
      github_reviewed: true,
      github_reviewed_at: "2020-06-16T21:20:04Z",
      nvd_published_at: null,
      severity: "HIGH",
   },
   details: "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.",
   id: "GHSA-6qvp-r6r3-9p7h",
   modified: "2023-08-26T00:01:34Z",
   published: "2019-01-17T14:05:03Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2018-14404",
      },
      {
         type: "WEB",
         url: "https://github.com/sparklemotion/nokogiri/issues/1785",
      },
      {
         type: "WEB",
         url: "https://access.redhat.com/errata/RHSA-2019:1543",
      },
      {
         type: "WEB",
         url: "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817",
      },
      {
         type: "WEB",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=1595985",
      },
      {
         type: "WEB",
         url: "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2018-14404.yml",
      },
      {
         type: "WEB",
         url: "https://gitlab.gnome.org/GNOME/libxml2/issues/10",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html",
      },
      {
         type: "WEB",
         url: "https://security.netapp.com/advisory/ntap-20190719-0002",
      },
      {
         type: "WEB",
         url: "https://usn.ubuntu.com/3739-1",
      },
      {
         type: "WEB",
         url: "https://usn.ubuntu.com/3739-2",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
   summary: "Nokogiri NULL Pointer Dereference",
}


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