A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tigervnc-serverUpgrade xorg-x11-server-XdmxUpgrade tigervncUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XephyrUpgrade tigervnc-licenseUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XorgUpgrade tigervnc-iconsUpgrade xorg-x11-server-commonUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-Xwayland | Feb 1, 2024 | Jan 30, 2024 |
| Alpine Linux | — | Upgrade xorg-serverUpgrade xwayland | Aug 22, 2024 | Feb 28, 2024 |
| Amazon Linux Ami 2 | — | Upgrade xorg-x11-server-commonUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-source | Feb 21, 2024 | Feb 21, 2024 |
| Amazon_linux | — | Upgrade xorg-x11-server | Apr 29, 2024 | Feb 28, 2024 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-commonUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-debuginfo | Feb 17, 2025 | Jan 16, 2024 |
| Centos_linux | — | Upgrade tigervnc-server-moduleUpgrade tigervnc-serverUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XnestUpgrade tigervnc-licenseUpgrade tigervncUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-debuginfoUpgrade tigervnc-server-appletUpgrade tigervnc-debuginfoUpgrade tigervnc-iconsUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-Xephyr | Jan 23, 2024 | Jan 22, 2024 |
| Debian | — | Upgrade xorg-serverUpgrade xwayland | Jan 29, 2024 | Jan 29, 2024 |
| Freebsd | — | Upgrade xorg-vfbserverUpgrade xwaylandUpgrade xorg-serverUpgrade xorg-nextserverUpgrade xwayland-develUpgrade xephyr | Dec 10, 2025 | Jan 16, 2024 |
| Gentoo Linux | — | Upgrade x11-base/xorg-server.Upgrade x11-base/xwayland. | Feb 1, 2024 | Jan 31, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade xorg-x11-server-help | Mar 13, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade xorg-x11-server-help | Mar 13, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade xorg-x11-server-help | May 31, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp5 | — | Upgrade xorg-x11-server-common | Oct 8, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade xorg-x11-server-common | Jul 24, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade xorg-x11-server-help | Apr 9, 2024 | Feb 28, 2024 |
| Oracle_linux | — | Upgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XvfbUpgrade tigervnc-licenseUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-sourceUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XdmxUpgrade tigervnc-iconsUpgrade xorg-x11-server-XephyrUpgrade tigervnc-selinuxUpgrade tigervnc-server-appletUpgrade tigervnc | May 7, 2024 | Jan 16, 2024 |
| Redhat_linux | — | Upgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-develUpgrade tigervnc-iconsUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xnest-debuginfoUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XnestNo solution existsUpgrade xorg-x11-server-XdmxUpgrade tigervnc-serverUpgrade xorg-x11-server-debuginfoUpgrade tigervnc-server-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-server-appletUpgrade tigervnc-selinuxUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XorgUpgrade tigervnc-licenseUpgrade xorg-x11-server-XephyrUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-module-debuginfoUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-commonUpgrade tigervnc | Jan 29, 2024 | Jan 22, 2024 |
| Rocky_linux | — | — | Aug 15, 2024 | Feb 28, 2024 |
| Suse | — | Upgrade xorg-x11-server-extraUpgrade xorg-x11-serverUpgrade xorg-x11-server-waylandUpgrade xwaylandUpgrade xorg-x11-server-sdkUpgrade xorg-x11-server-sourceUpgrade xwayland-develUpgrade xorg-x11-server-Xvfb | Jan 17, 2024 | Jan 17, 2024 |
| Ubuntu | — | Upgrade xwaylandUpgrade xserver-xorg-core (Ubuntu Pro)Upgrade xserver-xorg-coreUpgrade xwayland (Ubuntu Pro) | Jan 17, 2024 | Jan 16, 2024 |
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