===================================================================                             CERT-Renater

                   Note d'Information No. 2021/VULN053
_____________________________________________________________________

DATE                : 01/02/2022

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Django versions prior to
                               4.0.2, 3.2.12, 2.2.27.

====================================================================https://www.djangoproject.com/weblog/2022/feb/01/security-releases/
_____________________________________________________________________

Django security releases issued: 4.0.2, 3.2.12, and 2.2.27
Posted by Mariusz Felisiak on février 1, 2022


In accordance with our security release policy, the Django team is
issuing Django 4.0.2, Django 3.2.12, and Django 2.2.27. These release
addresses the security issues detailed below. We encourage all users
of Django to upgrade as soon as possible.

CVE-2022-22818: Possible XSS via {% debug %} template tag
The {% debug %} template tag didn't properly encode the current context,
posing an XSS attack vector.

In order to avoid this vulnerability, {% debug %} no longer outputs an
information when the DEBUG setting is False, and it ensures all context
variables are correctly escaped when the DEBUG setting is True.

Thanks Keryn Knight for the report.

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

CVE-2022-23833: Denial-of-service possibility in file uploads
Passing certain inputs to multipart forms could result in an infinite loop
when parsing files.

Thanks Alan Ryan for the report.

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


Affected supported versions

Django main branch
Django 4.0
Django 3.2
Django 2.2


Resolution

Patches to resolve the issue have been applied to Django's main branch
and to the 4.0, 3.2, and 2.2 release branches. The patches may be
obtained from the following changesets.

CVE-2022-22818:

On the main branch
On the 4.0 release branch
On the 3.2 release branch
On the 2.2 release branch

CVE-2022-23833:

On the main branch
On the 4.0 release branch
On the 3.2 release branch
On the 2.2 release branch
The following releases have been issued:

Django 4.0.2 (download Django 4.0.2 | 4.0.2 checksums)
Django 3.2.12 (download Django 3.2.12 | 3.2.12 checksums)
Django 2.2.27 (download Django 2.2.27 | 2.2.27 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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