USN-4316-1: GD Graphics Library vulnerabilities

2 April 2020

libgd2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in GD Graphics Library.

Software Description

  • libgd2 - Open source code library for the dynamic creation of images

Details

It was discovered that GD Graphics Library incorrectly handled cloning an image. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service. (CVE-2018-14553)

It was discovered that GD Graphics Library incorrectly handled loading images from X bitmap format files. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service, or to disclose contents of the stack that has been left there by previous code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-11038)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.10
libgd-tools - 2.2.5-5.2ubuntu0.19.10.1
libgd3 - 2.2.5-5.2ubuntu0.19.10.1
Ubuntu 18.04 LTS
libgd-tools - 2.2.5-4ubuntu0.4
libgd3 - 2.2.5-4ubuntu0.4
Ubuntu 16.04 LTS
libgd-tools - 2.1.1-4ubuntu0.16.04.12
libgd3 - 2.1.1-4ubuntu0.16.04.12

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