---
title: "CVE-2019-3825\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-2019-3825?format=md
keywords: index, follow
---

# CVE-2019-3825

Publication date 6 February 2019

Last updated 18 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**6.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-3825?format=md#impact-score)

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## Description

A vulnerability was discovered in gdm before 3.31.4. When timed login is
enabled in configuration, an attacker could bypass the lock screen by
selecting the timed login user and waiting for the timer to expire, at
which time they would gain access to the logged-in user's session.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gdm3 | 26.04 LTS resolute | Fixed 3.31.4+git20190225-1ubuntu1 |
| 25.10 questing | Fixed 3.31.4+git20190225-1ubuntu1 |
| 25.04 plucky | Fixed 3.31.4+git20190225-1ubuntu1 |
| 24.10 oracular | Fixed 3.31.4+git20190225-1ubuntu1 |
| 24.04 LTS noble | Fixed 3.31.4+git20190225-1ubuntu1 |
| 23.10 mantic | Fixed 3.31.4+git20190225-1ubuntu1 |
| 23.04 lunar | Fixed 3.31.4+git20190225-1ubuntu1 |
| 22.10 kinetic | Fixed 3.31.4+git20190225-1ubuntu1 |
| 22.04 LTS jammy | Fixed 3.31.4+git20190225-1ubuntu1 |
| 21.10 impish | Fixed 3.31.4+git20190225-1ubuntu1 |
| 21.04 hirsute | Fixed 3.31.4+git20190225-1ubuntu1 |
| 20.10 groovy | Fixed 3.31.4+git20190225-1ubuntu1 |
| 20.04 LTS focal | Fixed 3.31.4+git20190225-1ubuntu1 |
| 19.10 eoan | Fixed 3.31.4+git20190225-1ubuntu1 |
| 19.04 disco | Fixed 3.31.4+git20190225-1ubuntu1 |
| 18.10 cosmic | Fixed 3.30.1-1ubuntu5.1 |
| 18.04 LTS bionic | Fixed 3.28.3-0ubuntu18.04.4 |
| 16.04 LTS xenial | Vulnerable |
| 14.04 LTS trusty | Not in release |

---

* [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-2019-3825?format=md#patch-details)

### 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 |
| --- | --- |
| gdm3 | * Upstream:   [7726c81](https://gitlab.gnome.org/GNOME/gdm/commit/7726c81db92d2339fc468ed41c967f5412db66ed) * Upstream:   [d9d22a1](https://gitlab.gnome.org/GNOME/gdm/commit/d9d22a1c48a528873e3cc84a73fc868507b8dd4d) * Upstream:   [94d9fec](https://gitlab.gnome.org/GNOME/gdm/commit/94d9fec87960e3ff5f7b75dadcde2807db148fbd) * Upstream:   [dd45295](https://gitlab.gnome.org/GNOME/gdm/commit/dd45295425c5a843c30aa8797b02d59ff488acb8) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.3 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3825)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-3825)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-3825)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-3825)

### Related Ubuntu Security Notices (USN)

+ [USN-3892-1](https://usn.ubuntu.com/USN-3892-1)
+ GDM vulnerability
+ 20 February 2019

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2019-3825>