{"id":"USN-6453-2","summary":"xorg-server vulnerabilities","details":"USN-6453-1 fixed several vulnerabilities in X.Org. This update provides\nthe corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and\nUbuntu 18.04 LTS.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\n prepending values to certain properties. An attacker could possibly use\n this issue to cause the X Server to crash, execute arbitrary code, or\n escalate privileges. (CVE-2023-5367)\n\n Sri discovered that the X.Org X Server incorrectly handled detroying\n windows in certain legacy multi-screen setups. An attacker could possibly\n use this issue to cause the X Server to crash, execute arbitrary code, or\n escalate privileges. (CVE-2023-5380)\n","modified":"2026-04-27T16:55:24.581293Z","published":"2023-10-31T15:16:46Z","related":["UBUNTU-CVE-2023-5367","UBUNTU-CVE-2023-5380"],"upstream":["CVE-2023-5367","CVE-2023-5380","UBUNTU-CVE-2023-5367","UBUNTU-CVE-2023-5380"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6453-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-5367"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-5380"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.11+esm8?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.15.1-0ubuntu2.11+esm8"}]}],"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","2:1.15.1-0ubuntu2.11+esm5","2:1.15.1-0ubuntu2.11+esm6","2:1.15.1-0ubuntu2.11+esm7"],"ecosystem_specific":{"binaries":[{"binary_name":"xdmx","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xdmx-tools","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xnest","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xorg-server-source","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xserver-common","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xserver-xephyr","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.15.1-0ubuntu2.11+esm8"},{"binary_name":"xvfb","binary_version":"2:1.15.1-0ubuntu2.11+esm8"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2023-5367","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":"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-2023-5380","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6453-2.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.12+esm6?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.18.4-0ubuntu0.12+esm6"}]}],"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","2:1.18.4-0ubuntu0.12+esm1","2:1.18.4-0ubuntu0.12+esm2","2:1.18.4-0ubuntu0.12+esm4","2:1.18.4-0ubuntu0.12+esm5"],"ecosystem_specific":{"binaries":[{"binary_name":"xdmx","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xdmx-tools","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xmir","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xnest","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xorg-server-source","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xserver-common","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xserver-xephyr","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xserver-xorg-legacy","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xvfb","binary_version":"2:1.18.4-0ubuntu0.12+esm6"},{"binary_name":"xwayland","binary_version":"2:1.18.4-0ubuntu0.12+esm6"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2023-5367","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":"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-2023-5380","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6453-2.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.19.6-1ubuntu4.15+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.19.6-1ubuntu4.15+esm1"}]}],"versions":["2:1.19.5-0ubuntu2","2:1.19.6-1ubuntu1","2:1.19.6-1ubuntu2","2:1.19.6-1ubuntu3","2:1.19.6-1ubuntu4","2:1.19.6-1ubuntu4.1","2:1.19.6-1ubuntu4.2","2:1.19.6-1ubuntu4.3","2:1.19.6-1ubuntu4.4","2:1.19.6-1ubuntu4.5","2:1.19.6-1ubuntu4.6","2:1.19.6-1ubuntu4.7","2:1.19.6-1ubuntu4.8","2:1.19.6-1ubuntu4.9","2:1.19.6-1ubuntu4.10","2:1.19.6-1ubuntu4.11","2:1.19.6-1ubuntu4.12","2:1.19.6-1ubuntu4.13","2:1.19.6-1ubuntu4.14","2:1.19.6-1ubuntu4.15"],"ecosystem_specific":{"binaries":[{"binary_name":"xdmx","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xdmx-tools","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xmir","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xnest","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xorg-server-source","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xserver-common","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xserver-xephyr","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xserver-xorg-core","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xserver-xorg-legacy","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xserver-xorg-xmir","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xvfb","binary_version":"2:1.19.6-1ubuntu4.15+esm1"},{"binary_name":"xwayland","binary_version":"2:1.19.6-1ubuntu4.15+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2023-5367","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":"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-2023-5380","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6453-2.json"}}],"schema_version":"1.7.5"}