GDK-PixBuf could be made to crash or run programs as your login if it opened a specially crafted file.
It was discovered that the GDK-PixBuf library did not properly handle certain jpeg images. If an user or automated system were tricked into opening a specially crafted jpeg file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-2862)
18 September 2017
A security issue affects these releases of Ubuntu and its derivatives:
GDK-PixBuf could be made to crash or run programs as your login if it opened a specially crafted file.
It was discovered that the GDK-PixBuf library did not properly handle certain jpeg images. If an user or automated system were tricked into opening a specially crafted jpeg file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-2862)
It was discovered that the GDK-PixBuf library did not properly handle certain tiff images. If an user or automated system were tricked into opening a specially crafted tiff file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-2870)
Ariel Zelivansky discovered that the GDK-PixBuf library did not properly handle printing certain error messages. If an user or automated system were tricked into opening a specially crafted image file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service. (CVE-2017-6311)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon