USN-3900-1: GD vulnerabilities

libgd2 vulnerabilities

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

• Ubuntu 18.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in GD.

Software Description

• libgd2 - GD Graphics Library

Details

It was discovered that GD incorrectly handled memory when processing certain images. A remote attacker could use this issue with a specially crafted image file to cause GD to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 18.10

libgd-tools - 2.2.5-4ubuntu1.1

libgd3 - 2.2.5-4ubuntu1.1

Ubuntu 18.04 LTS

libgd-tools - 2.2.5-4ubuntu0.3

libgd3 - 2.2.5-4ubuntu0.3

Ubuntu 16.04 LTS

libgd-tools - 2.1.1-4ubuntu0.16.04.11

libgd3 - 2.1.1-4ubuntu0.16.04.11

Ubuntu 14.04 LTS

libgd-tools - 2.1.0-3ubuntu0.11

libgd3 - 2.1.0-3ubuntu0.11

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

• CVE-2019-6977
• CVE-2019-6978

from Ubuntu Security Notices https://ift.tt/2Th8nLr