The GD library could be made to crash or run programs if it processed a specially crafted image file.
It was discovered that the GD library incorrectly handled certain malformed TGA images. If a user or automated system were tricked into processing a specially crafted TGA image, an attacker could cause a denial of service. (CVE-2016-6132, CVE-2016-6214)
10 August 2016
A security issue affects these releases of Ubuntu and its derivatives:
The GD library could be made to crash or run programs if it processed a specially crafted image file.
It was discovered that the GD library incorrectly handled certain malformed TGA images. If a user or automated system were tricked into processing a specially crafted TGA image, an attacker could cause a denial of service. (CVE-2016-6132, CVE-2016-6214)
It was discovered that the GD library incorrectly handled memory when using gdImageScale(). A remote attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2016-6207)
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.
In general, a standard system update will make all the necessary changes.
Vulmon