ESB-2017.3035 - [UNIX/Linux][Ubuntu] libxcursor1: Execute arbitrary code/commands - Existing account 2017-11-30

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

                               ESB-2017.3035
                         libxcursor vulnerability
                             30 November 2017

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

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

Product:           libxcursor1
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-16612  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3501-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running libxcursor1 check for an updated version of the software for
         their operating system.

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Ubuntu Security Notice USN-3501-1
November 29, 2017

libxcursor 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:

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

Software Description:
- - libxcursor: X11 cursor management library

Details:

It was discovered that libxcursor incorrectly handled certain files. An
attacker could use these issues to cause libxcursor 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:
  libxcursor1                     1:1.1.14-3ubuntu0.1

Ubuntu 17.04:
  libxcursor1                     1:1.1.14-1ubuntu0.17.04.1

Ubuntu 16.04 LTS:
  libxcursor1                     1:1.1.14-1ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  libxcursor1                     1:1.1.14-1ubuntu0.14.04.1

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

References:
  https://www.ubuntu.com/usn/usn-3501-1
  CVE-2017-16612

Package Information:
  https://launchpad.net/ubuntu/+source/libxcursor/1:1.1.14-3ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxcursor/1:1.1.14-1ubuntu0.17.04.1
  https://launchpad.net/ubuntu/+source/libxcursor/1:1.1.14-1ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/libxcursor/1:1.1.14-1ubuntu0.14.04.1

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