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Sicherheit: Denial of Service in Bind (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Denial of Service in Bind (Aktualisierung)
ID: USN-3956-2
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 ESM, Ubuntu 14.04 ESM
Datum: Do, 9. Mai 2019, 16:03
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5743
Applikationen: BIND
Update von: Denial of Service in Bind

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3956-2
May 09, 2019

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

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

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

Software Description:
- bind9: Internet Domain Name Server

Details:

USN-3956-1 fixed a vulnerability in Bind. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Bind incorrectly handled limiting the number of
simultaneous TCP clients. A remote attacker could possibly use this
issue to cause Bind to consume resources, leading to a denial of
service.

Update instructions:

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

Ubuntu 14.04 ESM:
bind9 1:9.9.5.dfsg-3ubuntu0.19+esm1

Ubuntu 12.04 ESM:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.28

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

References:
https://usn.ubuntu.com/usn/usn-3956-2
https://usn.ubuntu.com/usn/usn-3956-1
CVE-2018-5743
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