ESB-2017.2952 - [Ubuntu][FreeBSD][NetBSD] ipsec-tools: Denial of service - Remote/unauthenticated 2017-11-17

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

                               ESB-2017.2952
                         ipsec-tools vulnerability
                             17 November 2017

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

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

Product:           ipsec-tools
Publisher:         Ubuntu
Operating System:  NetBSD
                   Ubuntu
                   FreeBSD
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-10396  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3482-1

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

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Ubuntu Security Notice USN-3482-1

16th November, 2017

ipsec-tools vulnerability

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

  * Ubuntu 12.04 LTS

Summary

ipsec-tools could be made to crash if it received specially crafted network
traffic.

Software description

  * ipsec-tools - IPsec tools for Linux

Details

It was discovered that racoon, the ipsec-tools IKE daemon, incorrectly
handled certain ISAKMP fragments. A remote attacker could use this issue to
cause racoon to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 12.04 LTS:
    racoon 1:0.8.0-9ubuntu1.2
    ipsec-tools 1:0.8.0-9ubuntu1.2

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

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

References

CVE-2016-10396

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