{"id":"USN-3500-1","summary":"libxfont, libxfont1, libxfont2 vulnerability","details":"It was discovered that libXfont incorrectly followed symlinks when opening\nfont files. A local unprivileged user could use this issue to cause the X\nserver to access arbitrary files, including special device files.\n","modified":"2026-04-22T09:41:17.110504Z","published":"2017-11-29T18:01:32Z","related":["UBUNTU-CVE-2017-16611"],"upstream":["CVE-2017-16611","UBUNTU-CVE-2017-16611"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3500-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-16611"}],"affected":[{"package":{"name":"libxfont","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libxfont@1:1.4.7-1ubuntu0.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.4.7-1ubuntu0.4"}]}],"versions":["1:1.4.6-1","1:1.4.6-1ubuntu1","1:1.4.7-1","1:1.4.7-1ubuntu0.1","1:1.4.7-1ubuntu0.2","1:1.4.7-1ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.4.7-1ubuntu0.4","binary_name":"libxfont1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2017-16611"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3500-1.json"}},{"package":{"name":"libxfont","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxfont@1:1.5.1-1ubuntu0.16.04.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.5.1-1ubuntu0.16.04.4"}]}],"versions":["1:1.5.1-1","1:1.5.1-1ubuntu0.16.04.1","1:1.5.1-1ubuntu0.16.04.2","1:1.5.1-1ubuntu0.16.04.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.5.1-1ubuntu0.16.04.4","binary_name":"libxfont1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2017-16611"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3500-1.json"}},{"package":{"name":"libxfont2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxfont2@1:2.0.1-3~ubuntu16.04.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.1-3~ubuntu16.04.3"}]}],"versions":["1:2.0.1-3~ubuntu16.04.1","1:2.0.1-3~ubuntu16.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:2.0.1-3~ubuntu16.04.3","binary_name":"libxfont2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2017-16611"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3500-1.json"}}],"schema_version":"1.7.5"}