Ubuntu Security Notice 3060-1 - 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. 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. Various other issues were also addressed.
4ff0941884cc315075d0925f1efa11b66caecf01e8c16df9d940e0a0cdf582ce
=========================================================================
Ubuntu Security Notice USN-3060-1
August 10, 2016
libgd2 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
The GD library could be made to crash or run programs if it processed a
specially crafted image file.
Software Description:
- libgd2: GD Graphics Library
Details:
It was discovered that the GD library incorrectly handled certain malform
ed
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 usi
ng
gdImageScale(). A remote attacker could possibly use this issue to cause
a
denial of service or possibly execute arbitrary code. (CVE-2016-6207)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
libgd3 2.1.1-4ubuntu0.16.04.3
Ubuntu 14.04 LTS:
libgd3 2.1.0-3ubuntu0.3
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3060-1
CVE-2016-6132, CVE-2016-6207, CVE-2016-6214
Package Information:
https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.3