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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1214
                          OpenVPN vulnerabilities
                                12 May 2017

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

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

Product:           openvpn
Publisher:         Ubuntu
Operating System:  Ubuntu
                   Linux variants
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7479 CVE-2017-7478 

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3284-1

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

- --------------------------BEGIN INCLUDED TEXT--------------------

==========================================================================
Ubuntu Security Notice USN-3284-1
May 11, 2017

openvpn vulnerabilities
==========================================================================

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

- - Ubuntu 17.04

Summary:

Several security issues were fixed in OpenVPN.

Software Description:
- - openvpn: virtual private network software

Details:

It was discovered that OpenVPN improperly triggered an assert when
receiving an oversized control packet in some situations. A remote
attacker could use this to cause a denial of service (server or client
crash). (CVE-2017-7478)

It was discovered that OpenVPN improperly triggered an assert when packet
ids rolled over. An authenticated remote attacker could use this to cause a
denial of service (application crash). (CVE-2017-7479)

Update instructions:

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

Ubuntu 17.04:
  openvpn                         2.4.0-4ubuntu1.2

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

References:
  http://www.ubuntu.com/usn/usn-3284-1
  CVE-2017-7478, CVE-2017-7479

Package Information:
  https://launchpad.net/ubuntu/+source/openvpn/2.4.0-4ubuntu1.2

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

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