---
title: 'USN-3737-1: GDM vulnerability | Ubuntu security notices'
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/notices/USN-3737-1
---

1. [Ubuntu Security Notices](https://ubuntu.com/security/notices)
2. USN-3737-1

---

# USN-3737-1: GDM vulnerability

Publication date

13 August 2018

Overview

GDM could be made to crash or run programs as the administrator.

Releases

[18.04 LTS](https://ubuntu.com/security/notices?release=bionic)

---

Open side navigation

## Packages

* [gdm3](https://ubuntu.com/security/cves?package=gdm3) - GNOME Display Manager

## Details

A use-after-free was discovered in GDM. A local user could exploit this to
cause a denial of service, or potentially execute arbitrary code as the
administrator.

## Update instructions

After a standard system update you need to reboot your computer to make
all the necessary changes.

[Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security)

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

| Ubuntu Release | Package Version |
| --- | --- |
| 18.04 LTS bionic | [gdm3](https://launchpad.net/ubuntu/+source/gdm3) –  [3.28.2-0ubuntu1.4](https://launchpad.net/ubuntu/+source/gdm3/3.28.2-0ubuntu1.4) | | |

---

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## References

* [CVE-2018-14424](https://ubuntu.com/security/CVE-2018-14424)