Ubuntu 14.04 LTS USN-2212-1 Critical Python-Django Network Threat

ubuntu

May 15, 2014

Django applications could be made to expose sensitive information over the network.

Summary

Django applications could be made to expose sensitive information over

the network.

Software Description:

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

Details:

Stephen Stewart, Michael Nelson, Natalia Bidart and James Westby

discovered that Django improperly removed Vary and Cache-Control headers

from HTTP responses when replying to a request from an Internet Explorer

or Chrome Frame client. An attacker may use this to retrieve private data

or poison caches. This update removes workarounds for bugs in Internet

Explorer 6 and 7. (CVE-2014-1418)

Peter Kuma and Gavin Wahl discovered that Django did not correctly

validate some malformed URLs, which are accepted by some browsers. An

attacker may use this to cause unexpected redirects. An update has been

provided for 12.04 LTS, 12.10, 13.10, and 14.04 LTS; this issue remains

unfixed for 10.04 LTS as no "is_safe_url()" functionality existed in

this version.

Topics Covered

security advisory critical ubuntu network threat python-django

Update Instructions

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

Ubuntu 14.04 LTS:
  python-django                   1.6.1-2ubuntu0.3

Ubuntu 13.10:
  python-django                   1.5.4-1ubuntu1.3

Ubuntu 12.10:
  python-django                   1.4.1-2ubuntu0.7

Ubuntu 12.04 LTS:
  python-django                   1.3.1-4ubuntu1.11

Ubuntu 10.04 LTS:
  python-django                   1.1.1-2ubuntu1.12

After a standard system update you need to restart Django applications to
make all the necessary changes.