Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : nagios3 regression (USN-3253-2)
High Nessus Plugin ID 100677
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionUSN-3253-1 fixed vulnerabilities in Nagios. The update prevented log files from being displayed in the web interface. This update fixes the problem.
We apologize for the inconvenience.
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).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected nagios3-cgi and / or nagios3-core packages.