ghsa-c4qh-4vgv-qc6g
Vulnerability from github
Published
2019-08-06 01:43
Modified
2024-09-20 16:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
Django Denial-of-service in django.utils.text.Truncator
Details

An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x before 2.2.4. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.

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{
   affected: [
      {
         package: {
            ecosystem: "PyPI",
            name: "Django",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "1.11a1",
                  },
                  {
                     fixed: "1.11.23",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
      {
         package: {
            ecosystem: "PyPI",
            name: "Django",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "2.1a1",
                  },
                  {
                     fixed: "2.1.11",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
      {
         package: {
            ecosystem: "PyPI",
            name: "Django",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "2.2a1",
                  },
                  {
                     fixed: "2.2.4",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2019-14232",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-400",
      ],
      github_reviewed: true,
      github_reviewed_at: "2019-08-06T01:34:33Z",
      nvd_published_at: "2019-08-02T15:15:11Z",
      severity: "HIGH",
   },
   details: "An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x before 2.2.4. If `django.utils.text.Truncator`'s `chars()` and `words()` methods were passed the `html=True` argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The `chars()` and `words()` methods are used to implement the `truncatechars_htm`l and `truncatewords_html` template filters, which were thus vulnerable.",
   id: "GHSA-c4qh-4vgv-qc6g",
   modified: "2024-09-20T16:15:21Z",
   published: "2019-08-06T01:43:29Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2019-14232",
      },
      {
         type: "WEB",
         url: "https://www.openwall.com/lists/oss-security/2023/10/04/6",
      },
      {
         type: "WEB",
         url: "https://www.djangoproject.com/weblog/2019/aug/01/security-releases",
      },
      {
         type: "WEB",
         url: "https://www.debian.org/security/2019/dsa-4498",
      },
      {
         type: "WEB",
         url: "https://security.netapp.com/advisory/ntap-20190828-0002",
      },
      {
         type: "WEB",
         url: "https://security.gentoo.org/glsa/202004-17",
      },
      {
         type: "WEB",
         url: "https://seclists.org/bugtraq/2019/Aug/15",
      },
      {
         type: "WEB",
         url: "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/5XTP44JEOSNXRVW4JDZXA5XGMBDZLWSW",
      },
      {
         type: "WEB",
         url: "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/3LGJSPCN3VEG2UJPYCUB6TU75JTIV2TQ",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK",
      },
      {
         type: "WEB",
         url: "https://groups.google.com/forum/#%21topic/django-announce/jIoju2-KLDs",
      },
      {
         type: "WEB",
         url: "https://groups.google.com/forum/#!topic/django-announce/jIoju2-KLDs",
      },
      {
         type: "WEB",
         url: "https://github.com/pypa/advisory-db/tree/main/vulns/django/PYSEC-2019-11.yaml",
      },
      {
         type: "WEB",
         url: "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2019-11.yaml",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/django/django",
      },
      {
         type: "ADVISORY",
         url: "https://github.com/advisories/GHSA-c4qh-4vgv-qc6g",
      },
      {
         type: "WEB",
         url: "https://docs.djangoproject.com/en/dev/releases/security",
      },
      {
         type: "WEB",
         url: "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.html",
      },
      {
         type: "WEB",
         url: "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html",
      },
      {
         type: "WEB",
         url: "http://www.openwall.com/lists/oss-security/2023/10/04/6",
      },
      {
         type: "WEB",
         url: "http://www.openwall.com/lists/oss-security/2024/03/04/1",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
      {
         score: "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
         type: "CVSS_V4",
      },
   ],
   summary: "Django Denial-of-service in django.utils.text.Truncator",
}


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