A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xdmx" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xdmx-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xdmx-tools-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xnest" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xnest-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-common" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xephyr-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-core-dbg" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-core-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-core-udeb" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-core-udeb-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-dev-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-xmir" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xserver-xorg-xmir-dbgsym" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xvfb" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm9", "binary_name": "xvfb-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xdmx" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xdmx-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xdmx-tools-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xmir" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xmir-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xnest" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xnest-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-common" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xephyr-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-core-dbg" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-core-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-core-udeb" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-core-udeb-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-legacy" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-legacy-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xserver-xorg-xmir" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xvfb" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xvfb-dbgsym" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xwayland" }, { "binary_version": "2:1.18.4-0ubuntu0.12+esm9", "binary_name": "xwayland-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xdmx" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xdmx-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xdmx-tools-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xmir" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xmir-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xnest" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xnest-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-common" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xephyr-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-core-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-core-udeb" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-legacy" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-legacy-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xserver-xorg-xmir" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xvfb" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xvfb-dbgsym" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xwayland" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm4", "binary_name": "xwayland-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xdmx" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xdmx-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xdmx-tools-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xnest" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xnest-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-common" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xephyr-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-core-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-core-udeb" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-legacy" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xserver-xorg-legacy-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xvfb" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xvfb-dbgsym" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xwayland" }, { "binary_version": "2:1.20.13-1ubuntu1~20.04.14", "binary_name": "xwayland-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xnest" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xnest-dbgsym" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xorg-server-source" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-common" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xephyr" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xephyr-dbgsym" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xorg-core-dbgsym" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xorg-legacy" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xserver-xorg-legacy-dbgsym" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xvfb" }, { "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7", "binary_name": "xvfb-dbgsym" } ] }