Ubuntu Security Notice USN-3060-1
10th August, 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 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)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.04 LTS:
-
libgd3
2.1.1-4ubuntu0.16.04.3
- Ubuntu 14.04 LTS:
-
libgd3
2.1.0-3ubuntu0.3
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.