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CVE-2019-14232

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Date: August 2, 2019

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.

Language: Python

Severity Score

Related Resources (19)

http://www.openwall.com/lists/oss-security/2023/10/04/6
https://seclists.org/bugtraq/2019/Aug/15
http://www.openwall.com/lists/oss-security/2024/03/04/1
https://groups.google.com/forum/#%21topic/django-announce/jIoju2-KLDs
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html
https://docs.djangoproject.com/en/dev/releases/security/
https://nvd.nist.gov/vuln/detail/CVE-2019-14232
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK/
https://groups.google.com/forum/#!topic/django-announce/jIoju2-KLDs
https://security-tracker.debian.org/tracker/CVE-2019-14232
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-14232
https://security.alpinelinux.org/vuln/CVE-2019-14232
https://security.netapp.com/advisory/ntap-20190828-0002/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK/
https://www.djangoproject.com/weblog/2019/aug/01/security-releases/
https://www.debian.org/security/2019/dsa-4498
https://security.gentoo.org/glsa/202004-17
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.html
https://www.mend.io/vulnerability-database/CVE-2019-14232

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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