1. Ubuntu Security Notices
  2. USN-3253-1

USN-3253-1: Nagios vulnerabilities

Publication date

3 April 2017

Overview

Several security issues were fixed in Nagios.

Releases

Packages

  • 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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.10 yakkety nagios3-cgi –  3.5.1.dfsg-2.1ubuntu3.1
nagios3-core –  3.5.1.dfsg-2.1ubuntu3.1
16.04 xenial nagios3-cgi –  3.5.1.dfsg-2.1ubuntu1.1
nagios3-core –  3.5.1.dfsg-2.1ubuntu1.1
14.04 trusty nagios3-cgi –  3.5.1-1ubuntu1.1
nagios3-core –  3.5.1-1ubuntu1.1

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References

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