ESB-2018.2531 - [Win][UNIX/Linux][Ubuntu] libgd2: Multiple vulnerabilities 2018-08-28

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2531
                            GD vulnerabilities
                              28 August 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libgd2
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000222 CVE-2018-5711 

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3755-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running libgd2 check for an updated version of the software for 
         their operating system.

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USN-3755-1: GD vulnerabilities

27 August 2018
libgd2 vulnerabilities

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

    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 certain images. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2018-1000222)

It was discovered that GD incorrectly handled certain GIF files. An attacker
could possibly use this issue to cause a denial of service. (CVE-2018-5711)

Update instructions

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

Ubuntu 18.04 LTS
    libgd-tools - 2.2.5-4ubuntu0.2
    libgd3 - 2.2.5-4ubuntu0.2
Ubuntu 16.04 LTS
    libgd-tools - 2.1.1-4ubuntu0.16.04.10
    libgd3 - 2.1.1-4ubuntu0.16.04.10
Ubuntu 14.04 LTS
    libgd-tools - 2.1.0-3ubuntu0.10
    libgd3 - 2.1.0-3ubuntu0.10

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-2018-1000222
    CVE-2018-5711

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