A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tigervnc-server-minimalUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XvfbUpgrade tigervnc-iconsUpgrade tigervnc-selinuxUpgrade tigervncUpgrade xorg-x11-server-XdmxUpgrade tigervnc-licenseUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-serverUpgrade xorg-x11-server-XnestUpgrade tigervnc-server-module | Apr 30, 2024 | Apr 5, 2024 |
| Alpine Linux | — | Upgrade xwaylandUpgrade xorg-server | Aug 22, 2024 | Apr 5, 2024 |
| Amazon Linux Ami 2 | — | Upgrade tigervnc-serverUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XnestUpgrade tigervnc-iconsUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-appletUpgrade xorg-x11-server-sourceUpgrade tigervnc-debuginfoUpgrade tigervnc-server-minimalUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XvfbUpgrade tigervncUpgrade tigervnc-licenseUpgrade xorg-x11-server-Xephyr | Apr 19, 2024 | Apr 5, 2024 |
| Amazon_linux | — | Upgrade tigervncUpgrade xorg-x11-server | Apr 17, 2024 | Apr 5, 2024 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-XnestUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xephyr | Feb 17, 2025 | Apr 3, 2024 |
| Centos_linux | — | Upgrade tigervnc-debuginfoUpgrade xorg-x11-server-XephyrUpgrade tigervncUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-licenseUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sourceUpgrade tigervnc-iconsUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-commonUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-debuginfoUpgrade tigervnc-server-appletUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-serverUpgrade tigervnc-server-module | Apr 12, 2024 | Apr 5, 2024 |
| Debian | — | Upgrade xorg-serverUpgrade xwayland | Apr 15, 2024 | Apr 5, 2024 |
| Freebsd | — | Upgrade xwaylandUpgrade xwayland-develUpgrade xephyrUpgrade xorg-nextserverUpgrade xorg-vfbserverUpgrade xorg-server | Dec 10, 2025 | Apr 4, 2024 |
| Gentoo Linux | — | Upgrade x11-base/xorg-server.Upgrade x11-base/xwayland. | Nov 18, 2024 | Apr 5, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade xorg-x11-server-help | Jul 16, 2024 | Apr 5, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade xorg-x11-server-help | Jun 26, 2024 | Apr 5, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade xorg-x11-server-help | Oct 8, 2024 | Apr 5, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade xorg-x11-server-help | Jul 17, 2024 | Apr 5, 2024 |
| Oracle_linux | — | Upgrade xorg-x11-server-sourceUpgrade tigervncUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XvfbUpgrade tigervnc-server-appletUpgrade tigervnc-licenseUpgrade tigervnc-selinuxUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-server-moduleUpgrade tigervnc-server-minimalUpgrade tigervnc-serverUpgrade xorg-x11-server-XdmxUpgrade tigervnc-icons | Apr 12, 2024 | Apr 3, 2024 |
| Redhat_linux | — | Upgrade tigervnc-server-module-debuginfoUpgrade tigervnc-serverUpgrade tigervnc-licenseUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xorg-debuginfoUpgrade tigervnc-selinuxUpgrade tigervncNo solution existsUpgrade xorg-x11-server-Xnest-debuginfoUpgrade tigervnc-debuginfoUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-minimal-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-commonUpgrade tigervnc-debugsourceUpgrade xorg-x11-server-sourceUpgrade tigervnc-server-appletUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-iconsUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-debugsource | Apr 12, 2024 | Apr 5, 2024 |
| Rocky_linux | — | Upgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-develUpgrade tigervncUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-commonUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade tigervnc-server-minimalUpgrade tigervnc-serverUpgrade xorg-x11-server-develUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-debuginfoUpgrade tigervnc-debugsourceUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-Xdmx | May 8, 2024 | Apr 5, 2024 |
| Suse | — | Upgrade wayland-protocols-develUpgrade xorg-x11-server-sdkUpgrade presentproto-develUpgrade xorg-x11-server-XvfbUpgrade xwaylandUpgrade xorg-x11-server-sourceUpgrade xwayland-develUpgrade xorg-x11-serverUpgrade xorg-x11-server-extraUpgrade xorg-x11-server-waylandUpgrade dri3proto-devel | Apr 11, 2024 | Apr 5, 2024 |
| Ubuntu | — | Upgrade xwaylandUpgrade xwayland (Ubuntu Pro)Upgrade xserver-xorg-coreUpgrade xserver-xorg-core (Ubuntu Pro) | Apr 5, 2024 | Apr 4, 2024 |
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