Ubuntu Security Notice USN-4743-1
February 22, 2021
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.10
– Ubuntu 20.04 LTS
GDK-PixBuf could be made to crash if it opened a specially crafted file.
– gdk-pixbuf: GDK Pixbuf library
It was discovered that the GDK-PixBuf library did not properly handle
certain GIF images. If an user or automated system were tricked into
opening a specially crafted GIF file, a remote attacker could use this flaw
to cause GDK-PixBuf to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
After a standard system update you need to restart your session to make all
the necessary changes.