Updated: 2026-02-27 02:47:06.78782
Description:
An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | xorg-x11-server-Xwayland | 21.1.3 | 7.8 | HIGH | Released | CLSA-2025:1763558418 | 2025-11-19 17:09:40 | |
| AlmaLinux 9.2 ESU | tigervnc | 1.12.0 | 7.8 | HIGH | Released | CLSA-2025:1743071343 | 2025-03-28 03:20:08 | |
| CentOS 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1756409662 | 2025-09-11 21:32:47 | |
| Oracle Linux 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1760646154 | 2025-10-17 05:40:01 | |
| Oracle Linux 7 ELS | tigervnc | 1.8.0 | 7.8 | HIGH | Released | CLSA-2025:1760646561 | 2025-10-17 05:40:39 | |
| RHEL 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1756408410 | 2025-08-28 22:56:06 | |
| TuxCare 9.6 ESU | tigervnc | 1.14.1 | 7.8 | HIGH | Already Fixed | 2025-12-02 17:04:39 | ||
| TuxCare 9.6 ESU | xorg-x11-server-Xwayland | 23.2.7 | 7.8 | HIGH | Already Fixed | 2025-12-02 17:04:29 |