A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tigervncUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XvfbUpgrade tigervnc-licenseUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XorgUpgrade tigervnc-iconsUpgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland | Mar 18, 2025 | Feb 25, 2025 |
| Alpine Linux | — | Upgrade xwaylandUpgrade xorg-server | Aug 8, 2025 | Feb 25, 2025 |
| Amazon Linux Ami 2 | — | Upgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-source | Mar 26, 2025 | Feb 25, 2025 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-develUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xwayland-debuginfo | Mar 27, 2025 | Feb 25, 2025 |
| Debian | — | Upgrade xwaylandUpgrade xorg-server | Mar 3, 2025 | Feb 25, 2025 |
| Freebsd | — | Upgrade xephyrUpgrade xorg-nextserverUpgrade xorg-serverUpgrade xorg-vfbserverUpgrade xwayland | Mar 7, 2025 | Mar 6, 2025 |
| Gentoo Linux | — | Upgrade x11-base/xorg-server.Upgrade x11-base/xwayland. | Jun 13, 2025 | Feb 25, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade xorg-x11-server-help | Jul 11, 2025 | Feb 25, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade xorg-x11-server-help | Jun 13, 2025 | Feb 25, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade xorg-x11-server-help | Jul 21, 2025 | Feb 25, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade xorg-x11-server-help | Jul 1, 2025 | Feb 25, 2025 |
| Oracle_linux | — | Upgrade tigervncUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-develUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XdmxUpgrade tigervnc-server-appletUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-iconsUpgrade xorg-x11-server-XnestUpgrade tigervnc-licenseUpgrade xorg-x11-server-commonUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-XephyrUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-server | Mar 12, 2025 | Feb 25, 2025 |
| Redhat_linux | — | Upgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade tigervnc-server-appletUpgrade xorg-x11-server-debuginfoUpgrade tigervnc-iconsUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XvfbUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-sourceUpgrade tigervnc-server-module-debuginfoUpgrade xorg-x11-server-Xorg-debuginfoUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-develUpgrade tigervnc-licenseUpgrade xorg-x11-server-XdmxUpgrade tigervncUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-Xwayland-debugsourceNo solution existsUpgrade tigervnc-debugsourceUpgrade xorg-x11-server-debugsourceUpgrade tigervnc-serverUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade tigervnc-server-minimal-debuginfoUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-Xnest | Mar 11, 2025 | Feb 25, 2025 |
| Rocky_linux | — | Upgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade tigervncUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-commonUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-develUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade tigervnc-debugsourceUpgrade tigervnc-serverUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-moduleUpgrade tigervnc-server-module-debuginfoUpgrade xorg-x11-server-Xorg-debuginfo | May 8, 2025 | Feb 25, 2025 |
| Suse | — | Upgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sdkUpgrade xwayland-develUpgrade xorg-x11-serverUpgrade xwaylandUpgrade xorg-x11-server-extraUpgrade xorg-x11-server-waylandUpgrade xorg-x11-server-source | Dec 5, 2025 | Mar 14, 2025 |
| Ubuntu | — | Upgrade xwayland-hwe-16.04 (Ubuntu Pro)Upgrade xwayland-hwe-18.04 (Ubuntu Pro)Upgrade xserver-xorg-core (Ubuntu Pro)Upgrade xserver-xorg-coreUpgrade xserver-xorg-core-hwe-18.04 (Ubuntu Pro)Upgrade xwaylandUpgrade xserver-xorg-core-hwe-16.04 (Ubuntu Pro)Upgrade xwayland (Ubuntu Pro) | Feb 26, 2025 | Feb 25, 2025 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub