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Ubuntu Security Notice USN-3769-1

Ubuntu Security Notice USN-3769-1
Posted Sep 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3769-1 - It was discovered that Bind incorrectly handled the deny-answer-aliases feature. If this feature is enabled, a remote attacker could use this issue to cause Bind to crash, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-5740
MD5 | 264b44ce038373718e871ebf65478acc

Ubuntu Security Notice USN-3769-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3769-1
September 20, 2018

bind9 vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 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 the deny-answer-aliases
feature. If this feature is enabled, a remote attacker could use this issue
to cause Bind to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS:
bind9 1:9.11.3+dfsg-1ubuntu1.2

Ubuntu 16.04 LTS:
bind9 1:9.10.3.dfsg.P4-8ubuntu1.11

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.18

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

References:
https://usn.ubuntu.com/usn/usn-3769-1
CVE-2018-5740

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.2
https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.11
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.18

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