{"id":"UBUNTU-CVE-2015-0255","details":"X.Org Server (aka xserver and xorg-server) before 1.16.3 and 1.17.x before 1.17.1 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (crash) via a crafted string length value in a XkbSetGeometry request.","modified":"2026-04-22T10:01:40.169007Z","published":"2015-02-11T00:00:00Z","related":["USN-2500-1","USN-4772-1"],"upstream":["CVE-2015-0255"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-0255"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/02/10/18"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2500-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4772-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-0255"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.15.1-0ubuntu2.7"}]}],"versions":["2:1.14.3-3ubuntu2","2:1.14.3-3ubuntu3","2:1.14.3-3ubuntu4","2:1.14.3-5ubuntu1","2:1.14.4-1ubuntu1","2:1.14.4-1ubuntu2","2:1.14.4.901-0ubuntu2","2:1.14.5-1ubuntu2","2:1.14.5-1ubuntu4","2:1.15.0-1ubuntu1","2:1.15.0-1ubuntu2","2:1.15.0-1ubuntu3","2:1.15.0-1ubuntu4","2:1.15.0-1ubuntu6","2:1.15.0-1ubuntu7","2:1.15.1-0ubuntu1","2:1.15.1-0ubuntu2","2:1.15.1-0ubuntu2.1","2:1.15.1-0ubuntu2.4","2:1.15.1-0ubuntu2.5","2:1.15.1-0ubuntu2.6"],"ecosystem_specific":{"binaries":[{"binary_name":"xdmx","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xdmx-tools","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xnest","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xorg-server-source","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xserver-common","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xserver-xephyr","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.15.1-0ubuntu2.7"},{"binary_name":"xvfb","binary_version":"2:1.15.1-0ubuntu2.7"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0255.json"}},{"package":{"name":"xorg-server-lts-utopic","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server-lts-utopic@2:1.16.0-1ubuntu1.2~trusty2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.16.0-1ubuntu1.2~trusty2"}]}],"versions":["2:1.16.0-1ubuntu1.2~trusty1"],"ecosystem_specific":{"binaries":[{"binary_name":"xorg-server-source-lts-utopic","binary_version":"2:1.16.0-1ubuntu1.2~trusty2"},{"binary_name":"xserver-xephyr-lts-utopic","binary_version":"2:1.16.0-1ubuntu1.2~trusty2"},{"binary_name":"xserver-xorg-core-lts-utopic","binary_version":"2:1.16.0-1ubuntu1.2~trusty2"},{"binary_name":"xserver-xorg-dev-lts-utopic","binary_version":"2:1.16.0-1ubuntu1.2~trusty2"},{"binary_name":"xwayland-lts-utopic","binary_version":"2:1.16.0-1ubuntu1.2~trusty2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0255.json"}},{"package":{"name":"vnc4","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/vnc4@4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1"}]}],"versions":["4.1.1+xorg4.3.0-37ubuntu5","4.1.1+xorg4.3.0-37ubuntu5.0.1","4.1.1+xorg4.3.0-37ubuntu5.0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"vnc4server","binary_version":"4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1"},{"binary_name":"xvnc4viewer","binary_version":"4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0255.json"}},{"package":{"name":"vnc4","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/vnc4@4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1"}]}],"versions":["4.1.1+xorg4.3.0-37.3ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"vnc4server","binary_version":"4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1"},{"binary_name":"xvnc4viewer","binary_version":"4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0255.json"}},{"package":{"name":"vnc4","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/vnc4@4.1.1+xorg4.3.0-37.3ubuntu2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.1+xorg4.3.0-37.3ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"vnc4server","binary_version":"4.1.1+xorg4.3.0-37.3ubuntu2"},{"binary_name":"xvnc4viewer","binary_version":"4.1.1+xorg4.3.0-37.3ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0255.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}