CVE-2023-43665

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://groups.google.com/forum/#%21forum/django-announce
• https://docs.djangoproject.com/en/4.2/releases/security/
• https://www.djangoproject.com/weblog/2023/oct/04/security-releases/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU/
• https://security.netapp.com/advisory/ntap-20231221-0001/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
• http://www.openwall.com/lists/oss-security/2024/03/04/1
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/

References

• https://groups.google.com/forum/#%21forum/django-announce
• https://docs.djangoproject.com/en/4.2/releases/security/
• https://www.djangoproject.com/weblog/2023/oct/04/security-releases/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU/
• https://security.netapp.com/advisory/ntap-20231221-0001/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
• http://www.openwall.com/lists/oss-security/2024/03/04/1

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