CVE-2023-43665

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CVE-2023-43665

Summary:

Details: 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.

References: https://docs.djangoproject.com/en/4.2/releases/security/, https://groups.google.com/forum/#%21forum/django-announce, https://lists.fedoraproject.org/archives/list/[email protected]/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43665.json, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/, https://nvd.nist.gov/vuln/detail/CVE-2023-43665, https://security.netapp.com/advisory/ntap-20231221-0001/, http://www.openwall.com/lists/oss-security/2024/03/04/1, https://www.djangoproject.com/weblog/2023/oct/04/security-releases/