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