USN-4743-1: GDK-PixBuf vulnerability
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.
Source: USN-4743-1: GDK-PixBuf vulnerability