ESB-2017.2582 - [Ubuntu] libffi: Increased privileges - Existing account 2017-10-13

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

                               ESB-2017.2582
                           libffi vulnerability
                              13 October 2017

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

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

Product:           libffi
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000376  

Reference:         ESB-2017.1529

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3454-1

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Ubuntu Security Notice USN-3454-1
October 12, 2017

libffi vulnerability
==========================================================================

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

- - Ubuntu 14.04 LTS

Summary:

A security issue was fixed in libffi.

Software Description:
- - libffi: Foreign Function Interface library

Details:

It was discovered that libffi incorrectly enforced an executable stack. An
attacker could possibly use this issue, in combination with another
vulnerability, to facilitate executing arbitrary code.

Update instructions:

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

Ubuntu 14.04 LTS:
  libffi6                         3.1~rc1+r3.0.13-12ubuntu0.2

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

References:
  https://www.ubuntu.com/usn/usn-3454-1
  CVE-2017-1000376

Package Information:
  https://launchpad.net/ubuntu/+source/libffi/3.1~rc1+r3.0.13-12ubuntu0.2

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

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