{"id":"USN-3353-1","summary":"heimdal vulnerability","details":"Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered\nthat Heimdal clients incorrectly trusted unauthenticated portions\nof Kerberos tickets. A remote attacker could use this to impersonate\ntrusted network services or perform other attacks.\n","modified":"2026-04-22T09:38:00.537234Z","published":"2017-07-14T19:36:52Z","related":["UBUNTU-CVE-2017-11103"],"upstream":["CVE-2017-11103","UBUNTU-CVE-2017-11103"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3353-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-11103"}],"affected":[{"package":{"name":"heimdal","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/heimdal@1.6~git20131207+dfsg-1ubuntu1.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6~git20131207+dfsg-1ubuntu1.2"}]}],"versions":["1.6~git20120403+dfsg1-3ubuntu0.1","1.6~git20120403+dfsg1-3ubuntu0.2","1.6~git20131207+dfsg-1ubuntu1","1.6~git20131207+dfsg-1ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"heimdal-clients","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"heimdal-clients-x","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"heimdal-docs","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"heimdal-kcm","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_version":"1.6~git20131207+dfsg-1ubuntu1.2","binary_name":"heimdal-kdc"},{"binary_name":"heimdal-multidev","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"heimdal-servers","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"heimdal-servers-x","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libasn1-8-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libgssapi3-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libhcrypto4-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libhdb9-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libheimbase1-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_version":"1.6~git20131207+dfsg-1ubuntu1.2","binary_name":"libheimntlm0-heimdal"},{"binary_name":"libhx509-5-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libkadm5clnt7-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libkadm5srv8-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libkafs0-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libkdc2-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libkrb5-26-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libotp0-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libroken18-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_name":"libsl0-heimdal","binary_version":"1.6~git20131207+dfsg-1ubuntu1.2"},{"binary_version":"1.6~git20131207+dfsg-1ubuntu1.2","binary_name":"libwind0-heimdal"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2017-11103","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3353-1.json"}},{"package":{"name":"heimdal","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/heimdal@1.7~git20150920+dfsg-4ubuntu1.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7~git20150920+dfsg-4ubuntu1.16.04.1"}]}],"versions":["1.6~rc2+dfsg-10ubuntu1","1.7~git20150920+dfsg-4ubuntu1"],"ecosystem_specific":{"availability":"No subscription 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