CVE-2023-46695

high

Description

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.

References

https://www.djangoproject.com/weblog/2023/nov/01/security-releases/

https://security.netapp.com/advisory/ntap-20231214-0001/

https://groups.google.com/forum/#%21forum/django-announce

https://docs.djangoproject.com/en/4.2/releases/security/

Details

Source: Mitre, NVD

Published: 2023-11-02

Updated: 2023-12-14

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: High