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Ubuntu Security Notice USN-2469-2

Ubuntu Security Notice USN-2469-2
Posted Feb 4, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2469-2 - 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. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-0219, CVE-2015-0220, CVE-2015-0221, CVE-2015-0222
MD5 | 7d30568c7432ba821fe63d7008f52131

Ubuntu Security Notice USN-2469-2

Change Mirror Download
============================================================================
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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