Ubuntu Security Notice 3737-1 - 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.
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Ubuntu Security Notice USN-3737-1
August 13, 2018
gdm3 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary:
GDM could be made to crash or run programs as the administrator.
Software Description:
- 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:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
gdm3 3.28.2-0ubuntu1.4
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3737-1
CVE-2018-14424
Package Information:
https://launchpad.net/ubuntu/+source/gdm3/3.28.2-0ubuntu1.4