{"id":"UBUNTU-CVE-2015-3206","details":"The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.","modified":"2025-07-16T07:32:53.434688Z","published":"2017-08-25T18:29:00Z","withdrawn":"2025-07-18T16:43:12Z","upstream":["CVE-2015-3206"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-3206"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-3206"}],"affected":[{"package":{"name":"pykerberos","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/pykerberos@1.1.5-2build1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.5-2build1"}]}],"versions":["1.1.5-0.1build1","1.1.5-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python-kerberos","binary_version":"1.1.5-2build1"},{"binary_version":"1.1.5-2build1","binary_name":"python3-kerberos"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-3206.json"}},{"package":{"name":"pykerberos","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/pykerberos@1.1.5-2build3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.5-2build3"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python-kerberos","binary_version":"1.1.5-2build3"},{"binary_name":"python-kerberos-dbgsym","binary_version":"1.1.5-2build3"},{"binary_name":"python3-kerberos","binary_version":"1.1.5-2build3"},{"binary_name":"python3-kerberos-dbgsym","binary_version":"1.1.5-2build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-3206.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"}]}