CVE-2016-6912

Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.

Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.

OOB reads of the TGA decompression buffer (CVE-2016-6906).

Double-free in gdImageWebPtr() (CVE-2016-6912).

gdImageCreate() doesn't check for oversized images and as such is prone to DoS vulnerabilities (CVE-2016-9317).

Potential unsigned underflow in gd_interpolation.c (CVE-2016-10166).

DOS vulnerability in gdImageCreateFromGd2Ctx() (CVE-2016-10167).

Signed Integer Overflow gd_io.c (CVE-2016-10168).

These are all security issues fixed in the gd-2.3.3-1.1 package on the GA media of openSUSE Tumbleweed.

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)