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31 lines
1.4 KiB
Plaintext
31 lines
1.4 KiB
Plaintext
===========================
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Django 1.4.22 release notes
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===========================
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*August 18, 2015*
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Django 1.4.22 fixes a security issue in 1.4.21.
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It also fixes support with pip 7+ by disabling wheel support. Older versions
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of 1.4 would silently build a broken wheel when installed with those versions
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of pip.
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Denial-of-service possibility in ``logout()`` view by filling session store
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===========================================================================
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Previously, a session could be created when anonymously accessing the
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``django.contrib.auth.views.logout()`` view (provided it wasn't decorated
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with :func:`~django.contrib.auth.decorators.login_required` as done in the
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admin). This could allow an attacker to easily create many new session records
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by sending repeated requests, potentially filling up the session store or
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causing other users' session records to be evicted.
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The :class:`~django.contrib.sessions.middleware.SessionMiddleware` has been
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modified to no longer create empty session records, including when
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:setting:`SESSION_SAVE_EVERY_REQUEST` is active.
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Additionally, the ``contrib.sessions.backends.base.SessionBase.flush()`` and
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``cache_db.SessionStore.flush()`` methods have been modified to avoid creating
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a new empty session. Maintainers of third-party session backends should check
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if the same vulnerability is present in their backend and correct it if so.
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