CVE-2025-26596
Public on 2025-02-25
Modified on 2025-03-12
Description
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| HAQM Linux 1 | xorg-x11-server | No Fix Planned | ||
| HAQM Linux 2 - Core | xorg-x11-server | 2025-03-08 | ALAS2-2025-2791 | Fixed |
| HAQM Linux 2023 | xorg-x11-server | 2025-03-06 | ALAS2023-2025-892 | Fixed |
| HAQM Linux 2023 | xorg-x11-server-Xwayland | 2025-03-06 | ALAS2023-2025-891 | Fixed |
| HAQM Linux 2023 | xorg-x11-server-Xwayland | 2025-03-13 | ALAS2023-2025-895 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| HAQM Linux | CVSSv3 | 5.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |