{"id":"UBUNTU-CVE-2018-6535","details":"An issue was discovered in Icinga 2.x through 2.8.1. The lack of a constant-time password comparison function can disclose the password to an attacker.","modified":"2025-10-24T04:46:54Z","published":"2018-02-27T19:29:00Z","upstream":["CVE-2018-6535"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-6535"},{"type":"REPORT","url":"https://github.com/Icinga/icinga2/issues/4920"},{"type":"REPORT","url":"https://github.com/Icinga/icinga2/pull/5715"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-6535"}],"affected":[{"package":{"name":"icinga","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/icinga@1.13.3-2ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.3-1","1.13.3-2","1.13.3-2ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"icinga","binary_version":"1.13.3-2ubuntu0.1"},{"binary_name":"icinga-cgi","binary_version":"1.13.3-2ubuntu0.1"},{"binary_name":"icinga-cgi-bin","binary_version":"1.13.3-2ubuntu0.1"},{"binary_name":"icinga-common","binary_version":"1.13.3-2ubuntu0.1"},{"binary_name":"icinga-core","binary_version":"1.13.3-2ubuntu0.1"},{"binary_name":"icinga-idoutils","binary_version":"1.13.3-2ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-6535.json"}},{"package":{"name":"icinga","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/icinga@1.13.4-2build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.4-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.13.4-2build1","binary_name":"icinga"},{"binary_name":"icinga-cgi","binary_version":"1.13.4-2build1"},{"binary_name":"icinga-cgi-bin","binary_version":"1.13.4-2build1"},{"binary_version":"1.13.4-2build1","binary_name":"icinga-common"},{"binary_name":"icinga-core","binary_version":"1.13.4-2build1"},{"binary_name":"icinga-idoutils","binary_version":"1.13.4-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-6535.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}