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Ubuntu Security Notice USN-3253-1

Ubuntu Security Notice USN-3253-1
Posted Apr 3, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3253-1 - It was discovered that Nagios incorrectly handled certain long strings. A remote authenticated attacker could use this issue to cause Nagios to crash, resulting in a denial of service, or possibly obtain sensitive information. It was discovered that Nagios incorrectly handled certain long messages to cmd.cgi. A remote attacker could possibly use this issue to cause Nagios to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, cgi
systems | linux, ubuntu
advisories | CVE-2013-7108, CVE-2013-7205, CVE-2014-1878, CVE-2016-9566
MD5 | 84b8bad522cea2d054117e97ba900205

Ubuntu Security Notice USN-3253-1

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3253-1
April 03, 2017

nagios3 vulnerabilities
===========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Nagios.

Software Description:
- nagios3: host/service/network monitoring and management system

Details:

It was discovered that Nagios incorrectly handled certain long strings. A
remote authenticated attacker could use this issue to cause Nagios to
crash, resulting in a denial of service, or possibly obtain sensitive
information. (CVE-2013-7108, CVE-2013-7205)

It was discovered that Nagios incorrectly handled certain long messages to
cmd.cgi. A remote attacker could possibly use this issue to cause Nagios to
crash, resulting in a denial of service. (CVE-2014-1878)

Dawid Golunski discovered that Nagios incorrectly handled symlinks when
accessing log files. A local attacker could possibly use this issue to
elevate privileges. In the default installation of Ubuntu, this should be
prevented by the Yama link restrictions. (CVE-2016-9566)

Update instructions:

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

Ubuntu 16.10:
nagios3-cgi 3.5.1.dfsg-2.1ubuntu3.1
nagios3-core 3.5.1.dfsg-2.1ubuntu3.1

Ubuntu 16.04 LTS:
nagios3-cgi 3.5.1.dfsg-2.1ubuntu1.1
nagios3-core 3.5.1.dfsg-2.1ubuntu1.1

Ubuntu 14.04 LTS:
nagios3-cgi 3.5.1-1ubuntu1.1
nagios3-core 3.5.1-1ubuntu1.1

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

References:
http://www.ubuntu.com/usn/usn-3253-1
CVE-2013-7108, CVE-2013-7205, CVE-2014-1878, CVE-2016-9566

Package Information:
https://launchpad.net/ubuntu/+source/nagios3/3.5.1.dfsg-2.1ubuntu3.1
https://launchpad.net/ubuntu/+source/nagios3/3.5.1.dfsg-2.1ubuntu1.1
https://launchpad.net/ubuntu/+source/nagios3/3.5.1-1ubuntu1.1



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