1. Ubuntu Security Notices
  2. USN-1297-1

USN-1297-1: Django vulnerabilities

Publication date

9 December 2011

Overview

Applications using Django could be made to crash or expose sensitive information.

Releases

Packages

Details

Pall McMillan discovered that Django used the root namespace when storing
cached session data. A remote attacker could exploit this to modify
sessions. (CVE-2011-4136)

Paul McMillan discovered that Django would not timeout on arbitrary URLs
when the application used URLFields. This could be exploited by a remote
attacker to cause a denial of service via resource exhaustion.
(CVE-2011-4137)

Paul McMillan discovered that while Django would check the validity of a
URL via a HEAD request, it would instead use a GET request for the target
of a redirect. This could potentially be used to trigger arbitrary GET
requests via a crafted Location header. (CVE-2011-4138)

It was discovered that Django would sometimes use a request’s HTTP Host
header to construct a full URL. A remote attacker could exploit this to
conduct...

Pall McMillan discovered that Django used the root namespace when storing
cached session data. A remote attacker could exploit this to modify
sessions. (CVE-2011-4136)

Paul McMillan discovered that Django would not timeout on arbitrary URLs
when the application used URLFields. This could be exploited by a remote
attacker to cause a denial of service via resource exhaustion.
(CVE-2011-4137)

Paul McMillan discovered that while Django would check the validity of a
URL via a HEAD request, it would instead use a GET request for the target
of a redirect. This could potentially be used to trigger arbitrary GET
requests via a crafted Location header. (CVE-2011-4138)

It was discovered that Django would sometimes use a request’s HTTP Host
header to construct a full URL. A remote attacker could exploit this to
conduct host header cache poisoning attacks via a crafted request.
(CVE-2011-4139)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
11.10 oneiric python-django –  1.3-2ubuntu1.1
11.04 natty python-django –  1.2.5-1ubuntu1.1
10.10 maverick python-django –  1.2.3-1ubuntu0.2.10.10.3
10.04 lucid python-django –  1.1.1-2ubuntu1.4

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References

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