Ubuntu Security Notice USN-3253-1
3rd April, 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 version:
- Ubuntu 16.10:
-
nagios3-core
3.5.1.dfsg-2.1ubuntu3.1
-
nagios3-cgi
3.5.1.dfsg-2.1ubuntu3.1
- Ubuntu 16.04 LTS:
-
nagios3-core
3.5.1.dfsg-2.1ubuntu1.1
-
nagios3-cgi
3.5.1.dfsg-2.1ubuntu1.1
- Ubuntu 14.04 LTS:
-
nagios3-core
3.5.1-1ubuntu1.1
-
nagios3-cgi
3.5.1-1ubuntu1.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.