high
7.5
CWE
400 1284
Advisory Published
CVE Published
CVE Published
Advisory Published
Updated

CVE-2023-43665: Django: CVE-2023-43665: Denial-of-service possibility in django.utils.text.Truncator

First published: Wed Sep 27 2023(Updated: )

In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
pip/django>=4.2<4.2.6
4.2.6
pip/django>=4.1<4.1.12
4.1.12
pip/django>=3.2<3.2.22
3.2.22
Djangoproject Django>=3.2<3.2.22
Djangoproject Django>=4.1<4.1.12
Djangoproject Django>=4.2<4.2.6
Fedoraproject Fedora=39
ubuntu/python-django<4.2.6<4.1.12<3.2.22
4.2.6
4.1.12
3.2.22
ubuntu/python-django<2:2.2.12-1ubuntu0.20
2:2.2.12-1ubuntu0.20
ubuntu/python-django<2:3.2.12-2ubuntu1.9
2:3.2.12-2ubuntu1.9
ubuntu/python-django<3:3.2.18-1ubuntu0.5
3:3.2.18-1ubuntu0.5
ubuntu/python-django<1:1.11.11-1ubuntu1.21+
1:1.11.11-1ubuntu1.21+
ubuntu/python-django<3:4.2.4-1ubuntu2
3:4.2.4-1ubuntu2
redhat/python-django<3.2.22
3.2.22
redhat/python-django<4.1.12
4.1.12
redhat/python-django<4.2.6
4.2.6
debian/python-django<=1:1.11.29-1~deb10u1<=1:1.11.29-1+deb10u11<=2:2.2.28-1~deb11u2<=3:3.2.19-1+deb12u1
3:4.2.11-1

Remedy

https://docs.djangoproject.com/en/4.2/releases/security/

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this security issue?

    The vulnerability ID of this security issue is CVE-2023-43665.

  • What is the title of this vulnerability?

    The title of this vulnerability is "Django: CVE-2023-43665: Denial-of-service possibility in django.utils.text.Truncator".

  • What is the description of this vulnerability?

    The description of this vulnerability is "Denial-of-service possibility in django.utils.text.Truncator".

  • What software is affected by this vulnerability?

    The affected software is python-django version 4.2.6, 4.1.12, and 3.2.22 on Ubuntu, version 2:2.2.12-1ubuntu0.20 on Ubuntu Focal, version 2:3.2.12-2ubuntu1.9 on Ubuntu Jammy, version 3:3.2.18-1ubuntu0.5 on Ubuntu Lunar, and version 1:1.11.11-1ubuntu1.21+ on Ubuntu Bionic.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your python-django package to the recommended version provided by your operating system vendor or follow the instructions in the official security release from Django.

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