{"id":"UBUNTU-CVE-2016-9566","details":"base/logging.c in Nagios Core before 4.2.4 allows local users with access to an account in the nagios group to gain root privileges via a symlink attack on the log file.  NOTE: this can be leveraged by remote attackers using CVE-2016-9565.","modified":"2026-02-04T04:06:38.956871Z","published":"2016-12-15T00:00:00Z","related":["USN-3253-1"],"upstream":["CVE-2016-9566"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9566"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3253-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-9566"}],"affected":[{"package":{"name":"nagios3","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/nagios3@3.5.1-1ubuntu1.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.1-1ubuntu1.1"}]}],"versions":["3.4.1-5ubuntu2","3.4.1-5ubuntu3","3.5.1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"nagios3","binary_version":"3.5.1-1ubuntu1.1"},{"binary_name":"nagios3-cgi","binary_version":"3.5.1-1ubuntu1.1"},{"binary_name":"nagios3-common","binary_version":"3.5.1-1ubuntu1.1"},{"binary_name":"nagios3-core","binary_version":"3.5.1-1ubuntu1.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9566.json"}},{"package":{"name":"nagios3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nagios3@3.5.1.dfsg-2.1ubuntu1.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.1.dfsg-2.1ubuntu1.1"}]}],"versions":["3.5.1-1ubuntu4","3.5.1.dfsg-2ubuntu1","3.5.1.dfsg-2ubuntu2","3.5.1.dfsg-2.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"nagios3","binary_version":"3.5.1.dfsg-2.1ubuntu1.1"},{"binary_name":"nagios3-cgi","binary_version":"3.5.1.dfsg-2.1ubuntu1.1"},{"binary_name":"nagios3-common","binary_version":"3.5.1.dfsg-2.1ubuntu1.1"},{"binary_name":"nagios3-core","binary_version":"3.5.1.dfsg-2.1ubuntu1.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9566.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}