{"id":"UBUNTU-CVE-2016-7143","details":"The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.","modified":"2025-10-24T04:45:53Z","published":"2016-09-21T14:25:00Z","upstream":["CVE-2016-7143"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7143"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7143"}],"affected":[{"package":{"name":"charybdis","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/charybdis@3.4.2-3ubuntu0.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.2-3ubuntu0.1~esm1"}]}],"versions":["3.4.2-2","3.4.2-2ubuntu1","3.4.2-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"charybdis","binary_version":"3.4.2-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7143.json"}},{"package":{"name":"charybdis","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/charybdis@3.5.0-1build1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.2-4build1","3.4.2-5","3.5.0-1","3.5.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"charybdis","binary_version":"3.5.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7143.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"}]}