ESB-2017.1916 - [Ubuntu] lxc: Unauthorised access - Existing account 2017-08-03

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

                               ESB-2017.1916
                             LXC vulnerability
                               3 August 2017

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

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

Product:           lxc
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-10124  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3375-1

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Ubuntu Security Notice USN-3375-1
August 02, 2017

lxc vulnerability
==========================================================================

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

- - Ubuntu 14.04 LTS

Summary:

LXC would allow unintended access.

Software Description:
- - lxc: Linux Containers userspace tools

Details:

It was discovered that LXC incorrectly handled the TIOCSTI ioctl. An
attacker could possibly use this issue to escape LXC containers.

Update instructions:

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

Ubuntu 14.04 LTS:
  lxc                             1.0.10-0ubuntu1.1

After a standard system update you need to restart LXC containers to make
all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3375-1
  CVE-2016-10124

Package Information:
  https://launchpad.net/ubuntu/+source/lxc/1.0.10-0ubuntu1.1

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