A flaw was found in the X.Org server.
Date: 2024-01
Affected: tigervnc/tigervnc, x.org/x_server, x.org/xwayland, fedoraproject/fedora
Attack vector: other
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2024-0409
CWE: CWE-787
CVSS: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.


Mitigations:

Architectural layers (MAESTRO):