{"id":"USN-5193-2","summary":"xorg-server vulnerabilities","details":"USN-5193-1 fixed several vulnerabilities in X.Org. This update provides\nthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\n certain inputs. An attacker could use this issue to cause the server to\n crash, resulting in a denial of service, or possibly execute arbitrary\n code and escalate privileges.\n","modified":"2026-04-22T10:35:42.547773Z","published":"2022-01-26T14:06:56Z","related":["UBUNTU-CVE-2021-4008","UBUNTU-CVE-2021-4009","UBUNTU-CVE-2021-4011"],"upstream":["CVE-2021-4008","CVE-2021-4009","CVE-2021-4011","UBUNTU-CVE-2021-4008","UBUNTU-CVE-2021-4009","UBUNTU-CVE-2021-4011"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5193-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4008"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4009"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4011"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.11+esm5?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.15.1-0ubuntu2.11+esm5"}]}],"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","2:1.15.1-0ubuntu2.7","2:1.15.1-0ubuntu2.9","2:1.15.1-0ubuntu2.10","2:1.15.1-0ubuntu2.11","2:1.15.1-0ubuntu2.11+esm2","2:1.15.1-0ubuntu2.11+esm3","2:1.15.1-0ubuntu2.11+esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"xdmx","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xdmx-tools","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xnest","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xorg-server-source","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xserver-common","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xserver-xephyr","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.15.1-0ubuntu2.11+esm5"},{"binary_name":"xvfb","binary_version":"2:1.15.1-0ubuntu2.11+esm5"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-4008","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-4009","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-4011","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5193-2.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.12+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.18.4-0ubuntu0.12+esm1"}]}],"versions":["2:1.17.2-1ubuntu9","2:1.17.2-1ubuntu10","2:1.17.3-2ubuntu1","2:1.17.3-2ubuntu2","2:1.17.3-2ubuntu3","2:1.17.3-2ubuntu4","2:1.18.1-1ubuntu3","2:1.18.1-1ubuntu4","2:1.18.3-1ubuntu1","2:1.18.3-1ubuntu2","2:1.18.3-1ubuntu2.2","2:1.18.3-1ubuntu2.3","2:1.18.4-0ubuntu0.1","2:1.18.4-0ubuntu0.2","2:1.18.4-0ubuntu0.3","2:1.18.4-0ubuntu0.4","2:1.18.4-0ubuntu0.6","2:1.18.4-0ubuntu0.7","2:1.18.4-0ubuntu0.8","2:1.18.4-0ubuntu0.9","2:1.18.4-0ubuntu0.10","2:1.18.4-0ubuntu0.11","2:1.18.4-0ubuntu0.12"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"xdmx","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xdmx-tools","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xmir","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xnest","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xorg-server-source","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xserver-common","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xserver-xephyr","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xserver-xorg-legacy","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xvfb","binary_version":"2:1.18.4-0ubuntu0.12+esm1"},{"binary_name":"xwayland","binary_version":"2:1.18.4-0ubuntu0.12+esm1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-4008","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-4009","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-4011","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5193-2.json"}}],"schema_version":"1.7.5"}