ESB-2018.1074 - [Ubuntu] wayland: Execute arbitrary code/commands - Remote with user interaction 2018-04-10

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1074
                           Wayland vulnerability
                               10 April 2018

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

Product:           wayland
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-2017-16612  

Reference:         ESB-2017.3158
                   ESB-2017.3035

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3622-1

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USN-3622-1: Wayland vulnerability

9 April 2018

wayland vulnerability

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

  o Ubuntu 17.10
  o Ubuntu 16.04 LTS
  o Ubuntu 14.04 LTS

Summary

Wayland could be made to crash or run programs if it opened a specially crafted
file.

Software Description

  o wayland - Wayland compositor infrastructure

Details

It was discovered that the Wayland Xcursor support incorrectly handled certain
files. An attacker could use these issues to cause Wayland 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
    libwayland-cursor0 - 1.14.0-1ubuntu0.1
Ubuntu 16.04 LTS
    libwayland-bin - 1.12.0-1~ubuntu16.04.3
    libwayland-client0 - 1.12.0-1~ubuntu16.04.3
    libwayland-cursor0 - 1.12.0-1~ubuntu16.04.3
    libwayland-dev - 1.12.0-1~ubuntu16.04.3
    libwayland-doc - 1.12.0-1~ubuntu16.04.3
    libwayland-server0 - 1.12.0-1~ubuntu16.04.3
Ubuntu 14.04 LTS
    libwayland-cursor0 - 1.4.0-1ubuntu1.1

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

After a standard system update you need to reboot your computer to make all the
necessary changes.

References

  o https://usn.ubuntu.com/usn/usn-3622-1
  o CVE-2017-16612

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