Following the fix for CVE-2019-14232, the regular expressions used in the implementation of django.utils.text.Truncator’s chars() and words() methods (with html=True) were revised and improved. However, these regular expressions still exhibited linear backtracking complexity, so when given a very long, potentially malformed HTML input, the evaluation would still be slow, leading to a potential denial of service vulnerability. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus also vulnerable. The input processed by Truncator, when operating in HTML mode, has been limited to the first five million characters in order to avoid potential performance and memory issues.
Created python-django tracking bugs for this issue: Affects: fedora-all [bug 2242182] Created python-django3 tracking bugs for this issue: Affects: epel-8 [bug 2242180] Affects: fedora-all [bug 2242181]
This issue has been addressed in the following products: Red Hat Ansible Automation Platform 2.4 for RHEL 9 Red Hat Ansible Automation Platform 2.4 for RHEL 8 Via RHSA-2023:5758 https://access.redhat.com/errata/RHSA-2023:5758
This issue has been addressed in the following products: Red Hat Ansible Automation Platform 2.4 for RHEL 9 Red Hat Ansible Automation Platform 2.4 for RHEL 8 Via RHSA-2023:6158 https://access.redhat.com/errata/RHSA-2023:6158
This issue has been addressed in the following products: Red Hat Satellite 6.14 for RHEL 8 Via RHSA-2024:1536 https://access.redhat.com/errata/RHSA-2024:1536
This issue has been addressed in the following products: RHUI 4 for RHEL 8 Via RHSA-2024:1878 https://access.redhat.com/errata/RHSA-2024:1878
This issue has been addressed in the following products: Red Hat Satellite 6.15 for RHEL 8 Via RHSA-2024:2010 https://access.redhat.com/errata/RHSA-2024:2010