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                                CERT-Renater

                      Note d'Information No. 2023/VULN374

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DATE                : 05/10/2023

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Django versions prior to 4.2.5,
                                      4.1.11, 3.2.21.

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https://www.djangoproject.com/weblog/2023/sep/04/security-releases/
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Django security releases issued: 4.2.5, 4.1.11, and 3.2.21
Posted by Mariusz Felisiak on septembre 4, 2023

In accordance with our security release policy, the Django team is
issuing Django 4.2.5, Django 4.1.11, and Django 3.2.21. These
releases addresses the security issue detailed below. We encourage
all users of Django to upgrade as soon as possible.

CVE-2023-41164: Potential denial of service vulnerability in
django.utils.encoding.uri_to_iri()

django.utils.encoding.uri_to_iri() was subject to potential denial of
service attack via certain inputs with a very large number of Unicode
characters.

Thanks MProgrammer for the report.

This issue has severity "moderate" according to the Django
security policy.


Affected supported versions

     Django main branch
     Django 4.2
     Django 4.1
     Django 3.2


Resolution

Patches to resolve the issue have been applied to Django's main branch
and the 4.2, 4.1, and 3.2 release branches. The patches may be obtained
from the following changesets:

     On the main branch
     On the 4.2 release branch
     On the 4.1 release branch
     On the 3.2 release branch

The following releases have been issued:

     Django 4.2.5 (download Django 4.2.5 | 4.2.5 checksums)
     Django 4.1.11 (download Django 4.1.11 | 4.1.11 checksums)
     Django 3.2.21 (download Django 3.2.21 | 3.2.21 checksums)

The PGP key ID used for this release is Mariusz Felisiak: 2EF56372BA48CD1B.
General notes regarding security reporting

As always, we ask that potential security issues be reported via
private email to security@djangoproject.com, and not via
Django's Trac instance or the django-developers list. Please
see our security policies for further information.


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+ CERT-RENATER        |    tel : 01-53-94-20-44         +
+ 23/25 Rue Daviel    |    fax : 01-53-94-20-41         +
+ 75013 Paris         |   email:cert@support.renater.fr +
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