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-XvfbUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-selinuxUpgrade xorg-x11-server-sourceUpgrade tigervnc-licenseUpgrade xorg-x11-server-XorgUpgrade tigervnc-iconsUpgrade tigervnc-server-moduleUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-commonUpgrade tigervnc-serverUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xwayland-devel | 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-XorgUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-common | Mar 26, 2025 | Feb 25, 2025 |
| Amazon_linux_2023 | — | Upgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsource | 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/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-XnestUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-moduleUpgrade tigervnc-iconsUpgrade xorg-x11-server-XephyrUpgrade tigervnc-selinuxUpgrade tigervnc-server-minimalUpgrade tigervnc-licenseUpgrade tigervnc-serverUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XdmxUpgrade tigervncUpgrade xorg-x11-server-develUpgrade tigervnc-server-applet | Mar 12, 2025 | Feb 25, 2025 |
| Redhat_linux | — | Upgrade xorg-x11-server-commonUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-Xephyr-debuginfoNo solution existsUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XnestUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-serverUpgrade tigervnc-licenseUpgrade xorg-x11-server-debugsourceUpgrade tigervncUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-sourceUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-selinuxUpgrade tigervnc-server-appletUpgrade tigervnc-server-minimalUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XephyrUpgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-debuginfoUpgrade tigervnc-iconsUpgrade xorg-x11-server-XwaylandUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfo | Mar 11, 2025 | Feb 25, 2025 |
| Rocky_linux | — | Upgrade tigervnc-server-moduleUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade tigervnc-debugsourceUpgrade xorg-x11-server-XdmxUpgrade tigervnc-server-minimal-debuginfoUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-Xorg-debuginfoUpgrade tigervnc-server-minimalUpgrade tigervnc-serverUpgrade xorg-x11-server-XorgUpgrade tigervnc-server-module-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade tigervnc-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xnest-debuginfoUpgrade tigervncUpgrade tigervnc-server-debuginfoUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-common | May 8, 2025 | Feb 25, 2025 |
| Suse | — | Upgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-sdkUpgrade xwayland-develUpgrade xorg-x11-serverUpgrade xorg-x11-server-extraUpgrade xorg-x11-server-waylandUpgrade xwayland | Dec 5, 2025 | Mar 14, 2025 |
| Ubuntu | — | Upgrade xserver-xorg-core-hwe-16.04 (Ubuntu Pro)Upgrade xwayland (Ubuntu Pro)Upgrade xwaylandUpgrade xserver-xorg-coreUpgrade xserver-xorg-core (Ubuntu Pro)Upgrade xserver-xorg-core-hwe-18.04 (Ubuntu Pro)Upgrade xwayland-hwe-18.04 (Ubuntu Pro)Upgrade xwayland-hwe-16.04 (Ubuntu Pro) | Feb 26, 2025 | Feb 25, 2025 |
Prioritise with Active Threat Intelligence
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