---
title: "CVE-2018-16984\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-2018-16984?format=md
keywords: index, follow
---

# CVE-2018-16984

Publication date 2 October 2018

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**4.9 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2018-16984?format=md#impact-score)

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## Description

An issue was discovered in Django 2.1 before 2.1.2, in which unprivileged
users can read the password hashes of arbitrary accounts. The read-only
password widget used by the Django Admin to display an obfuscated password
hash was bypassed if a user has only the "view" permission (new in Django
2.1), resulting in display of the entire password hash to those users. This
may result in a vulnerability for sites with legacy user accounts using
insecure hashes.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2018-16984?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| python-django | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2018-16984?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

this issue was introduced in 2.1

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| python-django | * Upstream:   [bf39978](https://github.com/django/django/commit/bf39978a53f117ca02e9a0c78b76664a41a54745) * Upstream:   [c4bd5b5](https://github.com/django/django/commit/c4bd5b597e0aa2432e4c867b86650f18af117851) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.9 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.9 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16984)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-16984)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-16984)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-16984)

### Other references

* <https://www.djangoproject.com/weblog/2018/oct/01/security-release/>
* <https://www.cve.org/CVERecord?id=CVE-2018-16984>