{"id":"USN-5986-1","summary":"xorg-server, xorg-server-hwe-18.04, xwayland vulnerability","details":"Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\ncertain memory operations. An attacker could possibly use these issues to\ncause the X Server to crash, execute arbitrary code, or escalate\nprivileges.\n","modified":"2026-02-10T04:43:03Z","published":"2023-03-29T18:12:56Z","related":["UBUNTU-CVE-2023-1393"],"upstream":["CVE-2023-1393","UBUNTU-CVE-2023-1393"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5986-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1393"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.19.6-1ubuntu4.15?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.19.6-1ubuntu4.15"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xdmx"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xdmx-tools"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xmir"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xnest"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xorg-server-source"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-common"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-xephyr"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-xorg-core"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-xorg-dev"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-xorg-legacy"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xserver-xorg-xmir"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xvfb"},{"binary_version":"2:1.19.6-1ubuntu4.15","binary_name":"xwayland"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2023-1393","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5986-1.json"}},{"package":{"name":"xorg-server-hwe-18.04","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/xorg-server-hwe-18.04@2:1.20.8-2ubuntu2.2~18.04.11?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.8-2ubuntu2.2~18.04.11"}]}],"versions":["2:1.20.1-3ubuntu2.1~18.04.1","2:1.20.4-1ubuntu3~18.04.1","2:1.20.5+git20191008-0ubuntu1~18.04.1","2:1.20.8-2ubuntu2.1~18.04.1","2:1.20.8-2ubuntu2.2~18.04.1","2:1.20.8-2ubuntu2.2~18.04.2","2:1.20.8-2ubuntu2.2~18.04.3","2:1.20.8-2ubuntu2.2~18.04.4","2:1.20.8-2ubuntu2.2~18.04.5","2:1.20.8-2ubuntu2.2~18.04.6","2:1.20.8-2ubuntu2.2~18.04.7","2:1.20.8-2ubuntu2.2~18.04.8","2:1.20.8-2ubuntu2.2~18.04.9","2:1.20.8-2ubuntu2.2~18.04.10"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xorg-server-source-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xserver-xephyr-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xserver-xorg-core-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xserver-xorg-dev-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xserver-xorg-legacy-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11","binary_name":"xwayland-hwe-18.04"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2023-1393","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5986-1.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.20.13-1ubuntu1~20.04.8?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.13-1ubuntu1~20.04.8"}]}],"versions":["2:1.20.5+git20191008-0ubuntu1","2:1.20.6-1ubuntu1","2:1.20.7-2ubuntu1","2:1.20.7-2ubuntu2","2:1.20.8-2ubuntu2","2:1.20.8-2ubuntu2.1","2:1.20.8-2ubuntu2.2","2:1.20.8-2ubuntu2.3","2:1.20.8-2ubuntu2.4","2:1.20.8-2ubuntu2.6","2:1.20.9-2ubuntu1.1~20.04.1","2:1.20.9-2ubuntu1.2~20.04.1","2:1.20.9-2ubuntu1.2~20.04.2","2:1.20.11-1ubuntu1~20.04.2","2:1.20.13-1ubuntu1~20.04.2","2:1.20.13-1ubuntu1~20.04.3","2:1.20.13-1ubuntu1~20.04.4","2:1.20.13-1ubuntu1~20.04.5","2:1.20.13-1ubuntu1~20.04.6"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xdmx"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xdmx-tools"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xnest"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xorg-server-source"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xserver-common"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xserver-xephyr"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xserver-xorg-core"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xserver-xorg-dev"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xserver-xorg-legacy"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xvfb"},{"binary_version":"2:1.20.13-1ubuntu1~20.04.8","binary_name":"xwayland"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2023-1393","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5986-1.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:21.1.3-2ubuntu2.9?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:21.1.3-2ubuntu2.9"}]}],"versions":["2:1.20.13-1ubuntu1","2:1.20.13-1ubuntu2","2:1.20.14-1ubuntu1","2:21.1.3-2ubuntu2","2:21.1.3-2ubuntu2.1","2:21.1.3-2ubuntu2.2","2:21.1.3-2ubuntu2.3","2:21.1.3-2ubuntu2.4","2:21.1.3-2ubuntu2.5","2:21.1.3-2ubuntu2.6","2:21.1.3-2ubuntu2.7","2:21.1.3-2ubuntu2.8"],"ecosystem_specific":{"binaries":[{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xnest"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xorg-server-source"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xserver-common"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xserver-xephyr"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xserver-xorg-core"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xserver-xorg-dev"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xserver-xorg-legacy"},{"binary_version":"2:21.1.3-2ubuntu2.9","binary_name":"xvfb"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-1393","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5986-1.json"}},{"package":{"name":"xwayland","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/xwayland@2:22.1.1-1ubuntu0.6?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:22.1.1-1ubuntu0.6"}]}],"versions":["2:21.1.2-0ubuntu1","2:21.1.3-1","2:21.1.3-1ubuntu1","2:21.1.4-1","2:22.1.0-1","2:22.1.1-1","2:22.1.1-1ubuntu0.1","2:22.1.1-1ubuntu0.2","2:22.1.1-1ubuntu0.3","2:22.1.1-1ubuntu0.4","2:22.1.1-1ubuntu0.5"],"ecosystem_specific":{"binaries":[{"binary_version":"2:22.1.1-1ubuntu0.6","binary_name":"xwayland"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-1393","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5986-1.json"}}],"schema_version":"1.7.3"}