A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xdmx", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xdmx-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xdmx-tools", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xdmx-tools-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xnest", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xnest-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xorg-server-source", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-common", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xephyr", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xephyr-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-core-dbg", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-core-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-core-udeb", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-core-udeb-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-dev-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-xmir", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xserver-xorg-xmir-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xvfb", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" }, { "binary_name": "xvfb-dbgsym", "binary_version": "2:1.15.1-0ubuntu2.11+esm7" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xdmx", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xdmx-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xdmx-tools", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xdmx-tools-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xmir", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xmir-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xnest", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xnest-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xorg-server-source", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-common", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xephyr", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xephyr-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-core-dbg", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-core-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-core-udeb", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-core-udeb-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-legacy-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xserver-xorg-xmir", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xvfb", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xvfb-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xwayland", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" }, { "binary_name": "xwayland-dbgsym", "binary_version": "2:1.18.4-0ubuntu0.12+esm5" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xmir-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xmir-hwe-16.04-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xorg-server-source-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xephyr-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xephyr-hwe-16.04-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xorg-core-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xorg-core-hwe-16.04-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xorg-dev-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xorg-legacy-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xserver-xorg-legacy-hwe-16.04-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xwayland-hwe-16.04", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" }, { "binary_name": "xwayland-hwe-16.04-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xdmx", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xdmx-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xdmx-tools", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xdmx-tools-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xmir", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xmir-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xnest", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xnest-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xorg-server-source", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-common", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xephyr", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xephyr-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-core-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-core-udeb", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-legacy-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xserver-xorg-xmir", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xvfb", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xvfb-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xwayland", "binary_version": "2:1.19.6-1ubuntu4.13" }, { "binary_name": "xwayland-dbgsym", "binary_version": "2:1.19.6-1ubuntu4.13" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xorg-server-source-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xephyr-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xephyr-hwe-18.04-dbgsym", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xorg-core-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xorg-core-hwe-18.04-dbgsym", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xorg-dev-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xorg-legacy-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xserver-xorg-legacy-hwe-18.04-dbgsym", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xwayland-hwe-18.04", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" }, { "binary_name": "xwayland-hwe-18.04-dbgsym", "binary_version": "2:1.20.8-2ubuntu2.2~18.04.9" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xdmx", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xdmx-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xdmx-tools", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xdmx-tools-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xnest", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xnest-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xorg-server-source", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-common", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xephyr", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xephyr-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-core-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-core-udeb", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xserver-xorg-legacy-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xvfb", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xvfb-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xwayland", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" }, { "binary_name": "xwayland-dbgsym", "binary_version": "2:1.20.13-1ubuntu1~20.04.5" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "xnest", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xnest-dbgsym", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xorg-server-source", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-common", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xephyr", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xephyr-dbgsym", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xorg-core", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xorg-core-dbgsym", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xorg-dev", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xorg-legacy", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xserver-xorg-legacy-dbgsym", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xvfb", "binary_version": "2:21.1.3-2ubuntu2.5" }, { "binary_name": "xvfb-dbgsym", "binary_version": "2:21.1.3-2ubuntu2.5" } ] }