---
title: "CVE-2016-9014\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2016-9014?format=md
keywords: index, follow
---

# CVE-2016-9014

Publication date 1 November 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2016-9014?format=md#impact-score)

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## Description

Django before 1.8.x before 1.8.16, 1.9.x before 1.9.11, and 1.10.x before
1.10.3, when settings.DEBUG is True, allow remote attackers to conduct DNS
rebinding attacks by leveraging failure to validate the HTTP Host header
against settings.ALLOWED\_HOSTS.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| python-django | 16.10 yakkety | Fixed 1.8.7-1ubuntu8.1 |
| 16.04 LTS xenial | Fixed 1.8.7-1ubuntu5.4 |
| 14.04 LTS trusty | Fixed 1.6.1-2ubuntu0.16 |
| 12.04 LTS precise | Fixed 1.3.1-4ubuntu1.22 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.1 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.1 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9014)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-9014)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-9014)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-9014)

### Related Ubuntu Security Notices (USN)

+ [USN-3115-1](https://usn.ubuntu.com/USN-3115-1)
+ Django vulnerabilities
+ 1 November 2016

### Other references

* <https://www.djangoproject.com/weblog/2016/nov/01/security-releases/>
* <https://www.cve.org/CVERecord?id=CVE-2016-9014>