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Sicherheit: Denial of Service in libevent
Aktuelle Meldungen Distributionen
Name: Denial of Service in libevent
ID: USN-2477-1
Distribution: Ubuntu
Plattformen: Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 14.10
Datum: Di, 20. Januar 2015, 08:19
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6272

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==========================================================================
Ubuntu Security Notice USN-2477-1
January 19, 2015

libevent vulnerability
==========================================================================

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

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

libevent could be made to crash or run programs if it processed specially
crafted data.

Software Description:
- libevent: Asynchronous event notification library

Details:

Andrew Bartlett discovered that libevent incorrectly handled large inputs
to the evbuffer API. A remote attacker could possibly use this issue with
an application that uses libevent to cause a denial of service, or possibly
execute arbitrary code.

Update instructions:

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

Ubuntu 14.10:
libevent-2.0-5 2.0.21-stable-1ubuntu1.14.10.1

Ubuntu 14.04 LTS:
libevent-2.0-5 2.0.21-stable-1ubuntu1.14.04.1

Ubuntu 12.04 LTS:
libevent-2.0-5 2.0.16-stable-1ubuntu0.1

Ubuntu 10.04 LTS:
libevent-1.4-2 1.4.13-stable-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-2477-1
CVE-2014-6272

Package Information:
https://launchpad.net/ubuntu/+source/libevent/2.0.21-stable-1ubuntu1.14.10.1
https://launchpad.net/ubuntu/+source/libevent/2.0.21-stable-1ubuntu1.14.04.1
https://launchpad.net/ubuntu/+source/libevent/2.0.16-stable-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libevent/1.4.13-stable-1ubuntu0.1



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