CVE-2020-24583: Incorrect permissions on intermediate-level directories
on Python 3.7+
On Python 3.7+, FILE_UPLOAD_DIRECTORY_PERMISSIONS mode was not applied
to intermediate-level directories created in the process of uploading
files and to intermediate-level collected static directories when using
the collectstatic management command.
CVE-2020-24584: Permission escalation in intermediate-level directories
of the file system cache on Python 3.7+
On Python 3.7+, the intermediate-level directories of the file system
cache had the system's standard umask rather than 0o077 (no group or
others permissions).