USN-2469-2: Django regression

Ubuntu Security Notice USN-2469-2

4th February, 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 version:

Ubuntu 12.04 LTS:

python-django 1.3.1-4ubuntu1.15

Ubuntu 10.04 LTS:

python-django 1.1.1-2ubuntu1.16

To update your system, please follow these instructions: http://bit.ly/1aJDvTw.

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

References

LP: 1417274

from Ubuntu Security Notices http://bit.ly/1At6Kec