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Sicherheit: Denial of Service in expat
Aktuelle Meldungen Distributionen
Name: Denial of Service in expat
ID: USN-3356-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 16.10, Ubuntu 17.04
Datum: Do, 20. Juli 2017, 00:53
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9233

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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"
<ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <cf8b9d15-9232-44f1-cee6-806bf99f5762@canonical.com>
Subject: [USN-3356-1] Expat vulnerability

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==========================================================================
Ubuntu Security Notice USN-3356-1
July 19, 2017

expat vulnerability
==========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Expat could be made to hang if it received specially crafted input.

Software Description:
- expat: XML parsing C library

Details:

It was discovered that Expat incorrectly handled certain external entities.
A remote attacker could possibly use this issue to cause Expat to hang,
resulting in a denial of service.

Update instructions:

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

Ubuntu 17.04:
lib64expat1 2.2.0-2ubuntu0.1
libexpat1 2.2.0-2ubuntu0.1

Ubuntu 16.10:
lib64expat1 2.2.0-1ubuntu0.1
libexpat1 2.2.0-1ubuntu0.1

Ubuntu 16.04 LTS:
lib64expat1 2.1.0-7ubuntu0.16.04.3
libexpat1 2.1.0-7ubuntu0.16.04.3

Ubuntu 14.04 LTS:
lib64expat1 2.1.0-4ubuntu1.4
libexpat1 2.1.0-4ubuntu1.4

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

References:
https://www.ubuntu.com/usn/usn-3356-1
CVE-2017-9233

Package Information:
https://launchpad.net/ubuntu/+source/expat/2.2.0-2ubuntu0.1
https://launchpad.net/ubuntu/+source/expat/2.2.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/expat/2.1.0-7ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/expat/2.1.0-4ubuntu1.4



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