-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2531
                            GD vulnerabilities
                              28 August 2018

===========================================================================

        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.

- --------------------------BEGIN INCLUDED TEXT--------------------

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

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=+KUp
-----END PGP SIGNATURE-----