Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain lengths of XInput extension ChangeFeedbackControl requests. An attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code.
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{ "availability": "No subscription required", "binaries": [ { "xserver-xorg-dev-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xorg-server-source-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xmir-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xorg-legacy-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xwayland-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xephyr-hwe-16.04-dbgsym": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xorg-core-hwe-16.04-dbgsym": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xorg-core-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xorg-legacy-hwe-16.04-dbgsym": "2:1.19.6-1ubuntu4.1~16.04.6", "xserver-xephyr-hwe-16.04": "2:1.19.6-1ubuntu4.1~16.04.6", "xmir-hwe-16.04-dbgsym": "2:1.19.6-1ubuntu4.1~16.04.6", "xwayland-hwe-16.04-dbgsym": "2:1.19.6-1ubuntu4.1~16.04.6" } ] }
{ "availability": "No subscription required", "binaries": [ { "xvfb": "2:1.19.6-1ubuntu4.9", "xserver-xorg-legacy": "2:1.19.6-1ubuntu4.9", "xdmx": "2:1.19.6-1ubuntu4.9", "xdmx-tools-dbgsym": "2:1.19.6-1ubuntu4.9", "xserver-xorg-dev": "2:1.19.6-1ubuntu4.9", "xnest-dbgsym": "2:1.19.6-1ubuntu4.9", "xserver-xorg-core": "2:1.19.6-1ubuntu4.9", "xserver-common": "2:1.19.6-1ubuntu4.9", "xwayland-dbgsym": "2:1.19.6-1ubuntu4.9", "xnest": "2:1.19.6-1ubuntu4.9", "xserver-xephyr": "2:1.19.6-1ubuntu4.9", "xserver-xorg-xmir": "2:1.19.6-1ubuntu4.9", "xdmx-tools": "2:1.19.6-1ubuntu4.9", "xmir-dbgsym": "2:1.19.6-1ubuntu4.9", "xwayland": "2:1.19.6-1ubuntu4.9", "xorg-server-source": "2:1.19.6-1ubuntu4.9", "xserver-xorg-core-dbgsym": "2:1.19.6-1ubuntu4.9", "xmir": "2:1.19.6-1ubuntu4.9", "xserver-xephyr-dbgsym": "2:1.19.6-1ubuntu4.9", "xdmx-dbgsym": "2:1.19.6-1ubuntu4.9", "xvfb-dbgsym": "2:1.19.6-1ubuntu4.9", "xserver-xorg-legacy-dbgsym": "2:1.19.6-1ubuntu4.9", "xserver-xorg-core-udeb": "2:1.19.6-1ubuntu4.9" } ] }
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{ "availability": "No subscription required", "binaries": [ { "xvfb": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-legacy": "2:1.20.9-2ubuntu1.2~20.04.2", "xdmx": "2:1.20.9-2ubuntu1.2~20.04.2", "xdmx-tools-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-dev": "2:1.20.9-2ubuntu1.2~20.04.2", "xorg-server-source": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-core": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-common": "2:1.20.9-2ubuntu1.2~20.04.2", "xwayland-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xnest": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xephyr": "2:1.20.9-2ubuntu1.2~20.04.2", "xwayland": "2:1.20.9-2ubuntu1.2~20.04.2", "xdmx-tools": "2:1.20.9-2ubuntu1.2~20.04.2", "xnest-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-core-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xephyr-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xdmx-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xvfb-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-legacy-dbgsym": "2:1.20.9-2ubuntu1.2~20.04.2", "xserver-xorg-core-udeb": "2:1.20.9-2ubuntu1.2~20.04.2" } ] }