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             AUSCERT External Security Bulletin Redistribution

                        GDK-PixBuf vulnerabilities
                              16 January 2018


        AusCERT Security Bulletin Summary

Product:           GDK-PixBuf
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000422 CVE-2017-6314 CVE-2017-6313

Reference:         ESB-2017.2256

Original Bulletin: 

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USN-3532-1: GDK-PixBuf vulnerabilities
Ubuntu Security Notice USN-3532-1

15th January, 2018
gdk-pixbuf vulnerabilities

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

    Ubuntu 17.10
    Ubuntu 16.04 LTS
    Ubuntu 14.04 LTS


Several security issues were fixed in GDK-PixBuf.
Software description

    gdk-pixbuf - GDK Pixbuf library


It was discoreved that GDK-PixBuf incorrectly handled certain gif images.
An attacker could use this to execute arbitrary code. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-1000422)

Ariel Zelivansky discovered that GDK-PixBuf incorrectly handled certain images.
An attacker could use this to cause a denial of service.
(CVE-2017-6312, CVE-2017-6313)

Ariel Zelivansky discovered that GDK-PixBuf incorrectly handled large TIFF files.
An attacker could use this to cause a denial of service. (CVE-2017-6314)
Update instructions

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

Ubuntu 17.10:
    libgdk-pixbuf2.0-0 2.36.11-1ubuntu0.1 
Ubuntu 16.04 LTS:
    libgdk-pixbuf2.0-0 2.32.2-1ubuntu1.4 
Ubuntu 14.04 LTS:
    libgdk-pixbuf2.0-0 2.30.7-0ubuntu1.8 

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart your session to make
all the necessary changes.

CVE-2017-1000422, CVE-2017-6312, CVE-2017-6313, CVE-2017-6314

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