Updated: 2025-11-28 14:33:22.021641
Description:
A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 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-2025:1764081820 | 2025-11-25 21:21:51 | |
| AlmaLinux 9.2 ESU | tigervnc | 1.12.0 | 7.8 | HIGH | Released | CLSA-2025:1744223313 | 2025-04-10 03:12:20 | |
| CentOS 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1765223770 | 2025-12-20 04:34:52 | |
| Oracle Linux 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1765209058 | 2025-12-08 17:19:16 | |
| Oracle Linux 7 ELS | tigervnc | 1.8.0 | 7.8 | HIGH | Already Fixed | 2025-10-07 16:39:33 | ||
| RHEL 7 ELS | xorg-x11-server | 1.20.4 | 7.8 | HIGH | Released | CLSA-2025:1765209523 | 2025-12-08 17:19:14 |