{"id":"USN-7299-3","summary":"xorg-server, xwayland regression","details":"USN-7299-2 fix vulnerabilities in X.Org X Server. This fix caused\nregression in Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. This update\nreverts it pending further investigation.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\n certain memory operations. An attacker could use these issues to cause the\n X Server to crash, leading to a denial of service, or possibly execute\n arbitrary code.\n","modified":"2026-04-22T10:56:21.582777Z","published":"2025-03-12T11:54:06Z","related":["UBUNTU-CVE-2025-26595","UBUNTU-CVE-2025-26596","UBUNTU-CVE-2025-26597","UBUNTU-CVE-2025-26598","UBUNTU-CVE-2025-26599","UBUNTU-CVE-2025-26600","UBUNTU-CVE-2025-26601"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7299-3"},{"type":"REPORT","url":"https://launchpad.net/bugs/2101897"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.12+esm16?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.18.4-0ubuntu0.12+esm16"}]}],"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","2:1.18.4-0ubuntu0.12+esm6","2:1.18.4-0ubuntu0.12+esm8","2:1.18.4-0ubuntu0.12+esm9","2:1.18.4-0ubuntu0.12+esm10","2:1.18.4-0ubuntu0.12+esm12","2:1.18.4-0ubuntu0.12+esm13","2:1.18.4-0ubuntu0.12+esm14","2:1.18.4-0ubuntu0.12+esm15"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xdmx"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xdmx-tools"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xmir"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xnest"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xorg-server-source"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xserver-common"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xserver-xephyr"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xserver-xorg-core"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xserver-xorg-legacy"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xserver-xorg-xmir"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xvfb"},{"binary_version":"2:1.18.4-0ubuntu0.12+esm16","binary_name":"xwayland"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7299-3.json"}},{"package":{"name":"xorg-server-hwe-16.04","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/xorg-server-hwe-16.04@2:1.19.6-1ubuntu4.1~16.04.6+esm8?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.19.6-1ubuntu4.1~16.04.6+esm8"}]}],"versions":["2:1.18.4-1ubuntu6.1~16.04.1","2:1.18.4-1ubuntu6.1~16.04.2","2:1.19.3-1ubuntu1~16.04.2","2:1.19.3-1ubuntu1~16.04.3","2:1.19.3-1ubuntu1~16.04.4","2:1.19.5-0ubuntu2~16.04.1","2:1.19.6-1ubuntu4~16.04.1","2:1.19.6-1ubuntu4.1~16.04.1","2:1.19.6-1ubuntu4.1~16.04.2","2:1.19.6-1ubuntu4.1~16.04.3","2:1.19.6-1ubuntu4.1~16.04.4","2:1.19.6-1ubuntu4.1~16.04.5","2:1.19.6-1ubuntu4.1~16.04.6","2:1.19.6-1ubuntu4.1~16.04.6+esm1","2:1.19.6-1ubuntu4.1~16.04.6+esm3","2:1.19.6-1ubuntu4.1~16.04.6+esm4","2:1.19.6-1ubuntu4.1~16.04.6+esm5","2:1.19.6-1ubuntu4.1~16.04.6+esm6","2:1.19.6-1ubuntu4.1~16.04.6+esm7"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xmir-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xorg-server-source-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xserver-xephyr-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xserver-xorg-core-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xserver-xorg-dev-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xserver-xorg-legacy-hwe-16.04"},{"binary_version":"2:1.19.6-1ubuntu4.1~16.04.6+esm8","binary_name":"xwayland-hwe-16.04"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7299-3.json"}},{"package":{"name":"xorg-server","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.19.6-1ubuntu4.15+esm11?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.19.6-1ubuntu4.15+esm11"}]}],"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","2:1.19.6-1ubuntu4.15+esm1","2:1.19.6-1ubuntu4.15+esm3","2:1.19.6-1ubuntu4.15+esm4","2:1.19.6-1ubuntu4.15+esm5","2:1.19.6-1ubuntu4.15+esm7","2:1.19.6-1ubuntu4.15+esm8","2:1.19.6-1ubuntu4.15+esm9","2:1.19.6-1ubuntu4.15+esm10"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xdmx"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xdmx-tools"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xmir"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xnest"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xorg-server-source"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xserver-common"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xserver-xephyr"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xserver-xorg-core"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xserver-xorg-legacy"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xserver-xorg-xmir"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xvfb"},{"binary_version":"2:1.19.6-1ubuntu4.15+esm11","binary_name":"xwayland"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7299-3.json"}},{"package":{"name":"xorg-server-hwe-18.04","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/xorg-server-hwe-18.04@2:1.20.8-2ubuntu2.2~18.04.11+esm3?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.8-2ubuntu2.2~18.04.11+esm3"}]}],"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","2:1.20.8-2ubuntu2.2~18.04.11","2:1.20.8-2ubuntu2.2~18.04.11+esm1","2:1.20.8-2ubuntu2.2~18.04.11+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xorg-server-source-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xserver-xephyr-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xserver-xorg-core-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xserver-xorg-dev-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xserver-xorg-legacy-hwe-18.04"},{"binary_version":"2:1.20.8-2ubuntu2.2~18.04.11+esm3","binary_name":"xwayland-hwe-18.04"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7299-3.json"}}],"schema_version":"1.7.5"}