An issue was discovered in Django 5.1 before 5.1.1, 5.0 before 5.0.9, and 4.2 before 4.2.16. The urlize() and urlizetrunc() template filters are subject to a potential denial-of-service attack via very large inputs with a specific sequence of characters.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://docs.djangoproject.com/en/dev/releases/security/ | vendor advisory |
| https://groups.google.com/forum/#%21forum/django-announce | permissions required |
| https://www.djangoproject.com/weblog/2024/sep/03/security-releases/ | vendor advisory |