Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libgd2 vulnerabilities (USN-3030-1)
Medium Nessus Plugin ID 92011
Synopsis
The remote Ubuntu host is missing one or more security-related patches.
Description
It was discovered that the GD library incorrectly handled memory when using gdImageScaleTwoPass(). A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2013-7456)
It was discovered that the GD library incorrectly handled certain malformed XBM images. If a user or automated system were tricked into processing a specially crafted XBM image, an attacker could cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-5116)
It was discovered that the GD library incorrectly handled memory when using _gd2GetHeader(). A remote attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code.
(CVE-2016-5766)
It was discovered that the GD library incorrectly handled certain color indexes. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-6128)
It was discovered that the GD library incorrectly handled memory when encoding a GIF image. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2016-6161).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected libgd2-noxpm, libgd2-xpm and / or libgd3 packages.