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37 lines
1.5 KiB
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37 lines
1.5 KiB
Plaintext
===========================
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Django 2.2.16 release notes
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===========================
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*September 1, 2020*
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Django 2.2.16 fixes two security issues and two data loss bugs in 2.2.15.
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CVE-2020-24583: Incorrect permissions on intermediate-level directories on Python 3.7+
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======================================================================================
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On Python 3.7+, :setting:`FILE_UPLOAD_DIRECTORY_PERMISSIONS` mode was not
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applied to intermediate-level directories created in the process of uploading
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files and to intermediate-level collected static directories when using the
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:djadmin:`collectstatic` management command.
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You should review and manually fix permissions on existing intermediate-level
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directories.
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CVE-2020-24584: Permission escalation in intermediate-level directories of the file system cache on Python 3.7+
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===============================================================================================================
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On Python 3.7+, the intermediate-level directories of the file system cache had
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the system's standard umask rather than ``0o077`` (no group or others
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permissions).
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Bugfixes
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========
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* Fixed a data loss possibility in the
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:meth:`~django.db.models.query.QuerySet.select_for_update()`. When using
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related fields pointing to a proxy model in the ``of`` argument, the
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corresponding model was not locked (:ticket:`31866`).
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* Fixed a data loss possibility, following a regression in Django 2.0, when
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copying model instances with a cached fields value (:ticket:`31863`).
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