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Sicherheit: Denial of Service in Bind
Aktuelle Meldungen Distributionen
Name: Denial of Service in Bind
ID: USN-4026-1
Distribution: Ubuntu
Plattformen: Ubuntu 18.04 LTS, Ubuntu 18.10, Ubuntu 19.04
Datum: Do, 20. Juni 2019, 17:52
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6471
Applikationen: BIND

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <611098a6-f001-cb51-8ddd-a2bf15e0df90@canonical.com>
Subject: [USN-4026-1] Bind vulnerability

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==========================================================================
Ubuntu Security Notice USN-4026-1
June 20, 2019

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

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 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 certain malformed packets.
A remote attacker could possibly 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 19.04:
bind9 1:9.11.5.P1+dfsg-1ubuntu2.5

Ubuntu 18.10:
bind9 1:9.11.4+dfsg-3ubuntu5.4

Ubuntu 18.04 LTS:
bind9 1:9.11.3+dfsg-1ubuntu1.8

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

References:
https://usn.ubuntu.com/4026-1
CVE-2019-6471

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.11.5.P1+dfsg-1ubuntu2.5
https://launchpad.net/ubuntu/+source/bind9/1:9.11.4+dfsg-3ubuntu5.4
https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.8


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