A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "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-dev", "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", "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-dev", "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" } ] }
{ "binaries": [ { "binary_name": "xmir-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xorg-server-source-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xserver-xephyr-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xserver-xorg-core-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xserver-xorg-dev-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xserver-xorg-legacy-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" }, { "binary_name": "xwayland-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "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-dev", "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" } ] }
{ "binaries": [ { "binary_name": "xorg-server-source-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" }, { "binary_name": "xserver-xephyr-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" }, { "binary_name": "xserver-xorg-core-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" }, { "binary_name": "xserver-xorg-dev-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" }, { "binary_name": "xserver-xorg-legacy-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" }, { "binary_name": "xwayland-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "xdmx", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xdmx-tools", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xnest", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xorg-server-source", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xserver-common", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xserver-xephyr", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xvfb", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" }, { "binary_name": "xwayland", "binary_version": "2:1.20.13-1ubuntu1~20.04.9" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "xnest", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xorg-server-source", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xserver-common", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xserver-xephyr", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" }, { "binary_name": "xvfb", "binary_version": "2:21.1.4-2ubuntu1.7~22.04.2" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "xnest", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xorg-server-source", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xserver-common", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xserver-xephyr", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:21.1.7-3ubuntu2.1" }, { "binary_name": "xvfb", "binary_version": "2:21.1.7-3ubuntu2.1" } ] }