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==========================================================================
Ubuntu Security Notice USN-2469-2
February 04, 2015

python-django regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

USN-2469-1 caused a regression in Django.

Software Description:
- python-django: High-level Python web development framework

Details:

USN-2469-1 fixed vulnerabilities in Django. The security fix for
CVE-2015-0221 introduced a regression on Ubuntu 10.04 LTS and Ubuntu 12.04
LTS when serving static content through GZipMiddleware. This update fixes
the problem.

We apologize for the inconvenience.

Original advisory details:

 Jedediah Smith discovered that Django incorrectly handled underscores in
 WSGI headers. A remote attacker could possibly use this issue to spoof
 headers in certain environments. (CVE-2015-0219)
  Mikko Ohtamaa discovered that Django incorrectly handled user-supplied
 redirect URLs. A remote attacker could possibly use this issue to perform a
 cross-site scripting attack. (CVE-2015-0220)
  Alex Gaynor discovered that Django incorrectly handled reading files in
 django.views.static.serve(). A remote attacker could possibly use this
 issue to cause Django to consume resources, resulting in a denial of
 service. (CVE-2015-0221)
  Keryn Knight discovered that Django incorrectly handled forms with
 ModelMultipleChoiceField. A remote attacker could possibly use this issue
 to cause a large number of SQL queries, resulting in a database denial of
 service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
 (CVE-2015-0222)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
  python-django                   1.3.1-4ubuntu1.15

Ubuntu 10.04 LTS:
  python-django                   1.1.1-2ubuntu1.16

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2469-2
  http://www.ubuntu.com/usn/usn-2469-1
  https://launchpad.net/bugs/1417274

Package Information:
  https://launchpad.net/ubuntu/+source/python-django/1.3.1-4ubuntu1.15
  https://launchpad.net/ubuntu/+source/python-django/1.1.1-2ubuntu1.16



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