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:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.