CVE-2023-43665
Publication date 4 October 2023
Last updated 19 August 2025
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| python-django | 26.04 LTS resolute |
Fixed 3:4.2.4-1ubuntu2
|
| 25.10 questing |
Fixed 3:4.2.4-1ubuntu2
|
|
| 24.04 LTS noble |
Fixed 3:4.2.4-1ubuntu2
|
|
| 22.04 LTS jammy |
Fixed 2:3.2.12-2ubuntu1.9
|
|
| 20.04 LTS focal |
Fixed 2:2.2.12-1ubuntu0.20
|
|
| 18.04 LTS bionic |
Fixed 1:1.11.11-1ubuntu1.21+esm2
|
|
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| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-6414-1
- Django vulnerability
- 4 October 2023
- USN-6414-2
- Django vulnerabilities
- 4 October 2023