[USN-2915-3] Django regression

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==========================================================================
Ubuntu Security Notice USN-2915-3
March 07, 2016

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

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

- Ubuntu 15.10
- Ubuntu 14.04 LTS

Summary:

USN-2915-1 introduced a regression in Django.

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

Details:

USN-2915-1 fixed vulnerabilities in Django. The upstream fix for
CVE-2016-2512 introduced a regression for certain applications. This update
fixes the problem by applying the complete upstream regression fix.

Original advisory details:

Mark Striemer discovered that Django incorrectly handled user-supplied
redirect URLs containing basic authentication credentials. A remote
attacker could possibly use this issue to perform a cross-site scripting
attack or a malicious redirect. (CVE-2016-2512)
Sjoerd Job Postmus discovered that Django incorrectly handled timing when
doing password hashing operations. A remote attacker could possibly use
this issue to perform user enumeration. (CVE-2016-2513)

Update instructions:

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

Ubuntu 15.10:
python-django 1.7.9-1ubuntu5.4
python3-django 1.7.9-1ubuntu5.4

Ubuntu 14.04 LTS:
python-django 1.6.1-2ubuntu0.14

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

References:
http://www.ubuntu.com/usn/usn-2915-3
http://www.ubuntu.com/usn/usn-2915-1
https://launchpad.net/bugs/1553251

Package Information:
https://launchpad.net/ubuntu/+source/python-django/1.7.9-1ubuntu5.4
https://launchpad.net/ubuntu/+source/python-django/1.6.1-2ubuntu0.14