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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.3008
                           OptiPNG vulnerability
                             28 November 2017

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

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

Product:           optipng
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-2017-1000229  

Reference:         ESB-2017.0877

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3495-1

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

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==========================================================================
Ubuntu Security Notice USN-3495-1
November 27, 2017

optipng vulnerability
==========================================================================

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

- - Ubuntu 17.10
- - Ubuntu 17.04
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

OptiPNG could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- - optipng: advanced PNG (Portable Network Graphics) optimizer

Details:

It was discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG 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 17.10:
  optipng                         0.7.6-1ubuntu0.17.10.1

Ubuntu 17.04:
  optipng                         0.7.6-1ubuntu0.17.04.1

Ubuntu 16.04 LTS:
  optipng                         0.7.6-1ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  optipng                         0.6.4-1ubuntu0.14.04.2

In general, a standard system update will make all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3495-1
  CVE-2017-1000229

Package Information:
  https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.17.10.1
  https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.17.04.1
  https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/optipng/0.6.4-1ubuntu0.14.04.2

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===========================================================================
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The University of Queensland
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