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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0497
                            Bind vulnerability
                             20 February 2018

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

Product:           bind9
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5735  

Reference:         ESB-2018.0493

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3574-1

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USN-3574-1: Bind vulnerability
Ubuntu Security Notice USN-3574-1

19th February, 2018
bind9 vulnerability

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

    Ubuntu 12.04 LTS

Summary

Bind could be made to crash if it received specially crafted network traffic.

Software description

    bind9 - Internet Domain Name Server

Details

It was discovered that Bind incorrectly handled DNSSEC
validation. An attacker could possibly use this to cause a denial
of service.

Update instructions

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

Ubuntu 12.04 LTS:
    bind9 1:9.8.1.dfsg.P1-4ubuntu0.25 

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-2018-5735

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