CVE-2016-6906

The read_image_tga function in gd_tga.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file, related to the decompression buffer.

The read_image_tga function in gd_tga.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file, related to the decompression buffer.

This update for gd fixes the following security issues:

• CVE-2016-6906: An out-of-bounds read in TGA decompression was fixed which could have lead to crashes. (bsc#1022553)
• CVE-2016-6912: Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) allowed remote attackers to have unspecified impact via large width and height values. (bsc#1022284)
• CVE-2016-9317: The gdImageCreate function in the GD Graphics Library (aka libgd) allowed remote attackers to cause a denial of service (system hang) via an oversized image. (bsc#1022283)
• CVE-2016-10166: A potential unsigned underflow in gd interpolation functions could lead to memory corruption in the GD Graphics Library (aka libgd) (bsc#1022263)
• CVE-2016-10167: A denial of service problem in gdImageCreateFromGd2Ctx() could lead to libgd running out of memory even on small files. (bsc#1022264)
• CVE-2016-10168: A signed integer overflow in the GD Graphics Library (aka libgd) could lead to memory corruption (bsc#1022265)

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)