USN-3213-1: GD library vulnerabilities
Ubuntu Security Notice USN-3213-1
28th February, 2017
libgd2 vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 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
Stefan Esser discovered that the GD library incorrectly handled memory when
processing certain images. If a user or automated system were tricked into
processing a specially crafted image, an attacker could cause a denial of
service, or possibly execute arbitrary code. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10166)
It was discovered that the GD library incorrectly handled certain malformed
images. If a user or automated system were tricked into processing a
specially crafted image, an attacker could cause a denial of service.
(CVE-2016-10167)
It was discovered that the GD library incorrectly handled certain malformed
images. If a user or automated system were tricked into processing a
specially crafted image, an attacker could cause a denial of service, or
possibly execute arbitrary code. (CVE-2016-10168)
Ibrahim El-Sayed 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. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and
Ubuntu 16.10. (CVE-2016-6906)
Ibrahim El-Sayed discovered that the GD library incorrectly handled certain
malformed WebP images. If a user or automated system were tricked into
processing a specially crafted WebP image, an attacker could cause a denial
of service, or possibly execute arbitrary code. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6912)
It was discovered that the GD library incorrectly handled creating
oversized images. If a user or automated system were tricked into creating
a specially crafted image, an attacker could cause a denial of service.
(CVE-2016-9317)
It was discovered that the GD library incorrectly handled filling certain
images. If a user or automated system were tricked into filling an image,
an attacker could cause a denial of service. (CVE-2016-9933)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.10:
-
libgd3
2.2.1-1ubuntu3.3
- Ubuntu 16.04 LTS:
-
libgd3
2.1.1-4ubuntu0.16.04.6
- Ubuntu 14.04 LTS:
-
libgd3
2.1.0-3ubuntu0.6
- Ubuntu 12.04 LTS:
-
libgd2-xpm
2.0.36~rc1~dfsg-6ubuntu2.4
-
libgd2-noxpm
2.0.36~rc1~dfsg-6ubuntu2.4
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.
References
Source: USN-3213-1: GD library vulnerabilities
