This update for nagios to version 4.4.5 fixes the following issues:
CVE-2019-3698: Symbolic link following vulnerability in the cronjob allows
local attackers to cause cause DoS or potentially escalate privileges. (boo#1156309)
CVE-2018-18245: Fixed XSS vulnerability in Alert Summary report (boo#1119832)
CVE-2018-13441, CVE-2018-13458, CVE-2018-13457: Fixed a few denial of service
vulnerabilities caused by null pointer dereference (boo#1101293, boo#1101289, boo#1101290).