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