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 xorg-x11-server-develUpgrade xorg-x11-server-XephyrUpgrade tigervnc-licenseUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XvfbUpgrade tigervncUpgrade xorg-x11-server-XnestUpgrade tigervnc-selinuxUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-commonUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-iconsUpgrade tigervnc-serverUpgrade xorg-x11-server-Xwayland | Mar 18, 2025 | Feb 25, 2025 |
| Alpine Linux | — | Upgrade xorg-serverUpgrade xwayland | Aug 8, 2025 | Feb 25, 2025 |
| Amazon Linux Ami 2 | — | Upgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-develUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland | Mar 26, 2025 | Feb 25, 2025 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-commonUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-Xephyr | Mar 27, 2025 | Feb 25, 2025 |
| Debian | — | Upgrade xwaylandUpgrade xorg-server | Mar 3, 2025 | Feb 25, 2025 |
| Freebsd | — | Upgrade xwaylandUpgrade xephyrUpgrade xorg-nextserverUpgrade xorg-vfbserverUpgrade xorg-server | 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 xorg-x11-server-XorgUpgrade tigervnc-iconsUpgrade xorg-x11-server-XnestUpgrade tigervnc-licenseUpgrade tigervnc-selinuxUpgrade xorg-x11-server-XephyrUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-commonUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-serverUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-develUpgrade tigervncUpgrade tigervnc-server-appletUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-source | Mar 12, 2025 | Feb 25, 2025 |
| Redhat_linux | — | Upgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade tigervnc-debugsourceUpgrade tigervncUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsourceNo solution existsUpgrade tigervnc-licenseUpgrade xorg-x11-server-commonUpgrade tigervnc-server-minimal-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-XnestUpgrade tigervnc-serverUpgrade tigervnc-selinuxUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-Xwayland-develUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade tigervnc-iconsUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-sourceUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-applet | Mar 11, 2025 | Feb 25, 2025 |
| Rocky_linux | — | Upgrade tigervnc-server-minimalUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-serverUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-moduleUpgrade tigervnc-server-minimal-debuginfoUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-XnestUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xwayland-develUpgrade tigervncUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-devel | May 8, 2025 | Feb 25, 2025 |
| Suse | — | Upgrade xorg-x11-server-sourceUpgrade xorg-x11-server-waylandUpgrade xorg-x11-serverUpgrade xorg-x11-server-extraUpgrade xwaylandUpgrade xorg-x11-server-sdkUpgrade xwayland-develUpgrade xorg-x11-server-Xvfb | Dec 5, 2025 | Mar 14, 2025 |
| Ubuntu | — | Upgrade xwaylandUpgrade xserver-xorg-core-hwe-16.04 (Ubuntu Pro)Upgrade xwayland (Ubuntu Pro)Upgrade xwayland-hwe-18.04 (Ubuntu Pro)Upgrade xwayland-hwe-16.04 (Ubuntu Pro)Upgrade xserver-xorg-coreUpgrade xserver-xorg-core (Ubuntu Pro)Upgrade xserver-xorg-core-hwe-18.04 (Ubuntu Pro) | Feb 26, 2025 | Feb 25, 2025 |
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