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

Source: USN-3900-1: GD vulnerabilities

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