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                             CERT-Renater

                 Note d'Information No. 2021/VULN339
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DATE                : 01/07/2021

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Django versions prior to 3.2.5,
                                        3.1.13.

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https://www.djangoproject.com/weblog/2021/jul/01/security-releases/
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Django security releases issued: 3.2.5 and 3.1.13
Posted by Mariusz Felisiak on juillet 1, 2021

In accordance with our security release policy, the Django team is
issuing Django 3.2.5 and Django 3.1.13. These releases address the
security issue with severity "high" detailed below. We encourage all
users of Django to upgrade as soon as possible.


CVE-2021-35042: Potential SQL injection via unsanitized
QuerySet.order_by() input

Unsanitized user input passed to QuerySet.order_by() could bypass
intended column reference validation in path marked for deprecation
resulting in a potential SQL injection even if a deprecation warning is
emitted.

As a mitigation the strict column reference validation was restored for
the duration of the deprecation period. This regression appeared in 3.1
as a side effect of fixing #31426.

The issue is not present in the main branch as the deprecated path has
been removed.

Thanks to Joel Saunders for the report.


Affected supported versions

    Django 3.2
    Django 3.1


Resolution

Patches to resolve the issue have been applied to Django's 3.2 and 3.1
release branches. The patches may be obtained from the following
changesets:

    On the 3.2 release branch
    On the 3.1 release branch

The following releases have been issued:

    Django 3.2.5 (download Django 3.2.5 | 3.2.5 checksums)
    Django 3.1.13 (download Django 3.1.13 | 3.1.13 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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