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.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tigervnc-server-minimalUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-serverUpgrade xorg-x11-server-XorgUpgrade tigervnc-iconsUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XephyrUpgrade tigervncUpgrade xorg-x11-server-sourceUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-develUpgrade tigervnc-license | 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-XwaylandUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-common | Mar 26, 2025 | Feb 25, 2025 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xephyr-debuginfo | Mar 27, 2025 | Feb 25, 2025 |
| Debian | — | Upgrade xwaylandUpgrade xorg-server | Mar 3, 2025 | Feb 25, 2025 |
| Freebsd | — | Upgrade xwaylandUpgrade xorg-nextserverUpgrade xorg-serverUpgrade xephyrUpgrade xorg-vfbserver | Mar 7, 2025 | Mar 6, 2025 |
| Gentoo Linux | — | Upgrade x11-base/xwayland.Upgrade x11-base/xorg-server. | 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 tigervnc-server-appletUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-develUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XorgUpgrade tigervnc-selinuxUpgrade tigervnc-licenseUpgrade xorg-x11-server-XephyrUpgrade tigervnc-server-minimalUpgrade tigervnc-serverUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-commonUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XnestUpgrade tigervnc-icons | Mar 12, 2025 | Feb 25, 2025 |
| Redhat_linux | — | Upgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-develUpgrade tigervnc-debugsourceUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-XnestUpgrade tigervnc-server-debuginfoUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervncUpgrade tigervnc-serverUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade tigervnc-licenseUpgrade xorg-x11-server-Xvfb-debuginfoNo solution existsUpgrade xorg-x11-server-Xorg-debuginfoUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XvfbUpgrade tigervnc-server-appletUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-XephyrUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-iconsUpgrade xorg-x11-server-Xnest-debuginfoUpgrade tigervnc-selinuxUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-module-debuginfo | Mar 11, 2025 | Feb 25, 2025 |
| Rocky_linux | — | Upgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade tigervnc-debuginfoUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade tigervncUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-serverUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-Xorg-debuginfoUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-XdmxUpgrade tigervnc-server-module-debuginfo | May 8, 2025 | Feb 25, 2025 |
| Suse | — | Upgrade xwayland-develUpgrade xorg-x11-server-extraUpgrade xorg-x11-server-waylandUpgrade xorg-x11-serverUpgrade xorg-x11-server-sdkUpgrade xorg-x11-server-XvfbUpgrade xwaylandUpgrade xorg-x11-server-source | Dec 5, 2025 | Mar 14, 2025 |
| Ubuntu | — | Upgrade xserver-xorg-core-hwe-16.04 (Ubuntu Pro)Upgrade xwayland (Ubuntu Pro)Upgrade xwaylandUpgrade xserver-xorg-core-hwe-18.04 (Ubuntu Pro)Upgrade xserver-xorg-core (Ubuntu Pro)Upgrade xwayland-hwe-16.04 (Ubuntu Pro)Upgrade xwayland-hwe-18.04 (Ubuntu Pro)Upgrade xserver-xorg-core | Feb 26, 2025 | Feb 25, 2025 |
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