USN-3994-1: gnome-desktop vulnerability

27 May 2019

gnome-desktop3 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.10
  • Ubuntu 18.04 LTS

Summary

gnome-desktop could be made to escape the thumbnailer sandbox.

Software Description

  • gnome-desktop3 - Introspection data for GnomeDesktop

Details

It was discovered that gnome-desktop incorrectly confined thumbnailers. If a user were tricked into downloading a malicious image file, a remote attacker could possibly combine this issue with another vulnerability to escape the sandbox and execute arbitrary code.

Update instructions

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

Ubuntu 19.04
libgnome-desktop-3-17 - 3.32.1-1ubuntu1.1
Ubuntu 18.10
libgnome-desktop-3-17 - 3.30.1-1ubuntu1.1
Ubuntu 18.04 LTS
libgnome-desktop-3-17 - 3.28.2-0ubuntu1.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart your session to make all the necessary changes.

References