CVE-2023-46695
Published: 2 November 2023
An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.
Notes
| Author | Note |
|---|---|
| mdeslaur | is a windows-specific issue |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
python-django Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(windows only)
|
| focal |
Not vulnerable
(windows only)
|
|
| jammy |
Not vulnerable
(windows only)
|
|
| lunar |
Not vulnerable
(windows only)
|
|
| mantic |
Not vulnerable
(windows only)
|
|
| trusty |
Not vulnerable
(windows only)
|
|
| upstream |
Not vulnerable
(debian: Only an issue on windows)
|
|
| xenial |
Not vulnerable
(windows only)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| 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 |