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CVE-2025-26597

Public on 2025-02-25
Modified on 2025-02-28
Description

A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.

Severity
Medium
See what this means
CVSS v3 Base Score
4.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core xorg-x11-server 2025-03-08 23:17 ALAS2-2025-2791
Amazon Linux 2023 xorg-x11-server 2025-03-06 23:13 ALAS2023-2025-892
Amazon Linux 2023 xorg-x11-server-Xwayland 2025-03-06 23:13 ALAS2023-2025-891
Amazon Linux 2023 xorg-x11-server-Xwayland 2025-03-13 04:48 ALAS2023-2025-895

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/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