A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2024-01-18T15:40:06.955Z

Updated: 2024-11-23T02:52:27.792Z

Reserved: 2024-01-10T21:13:58.095Z

Link: CVE-2024-0408

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2024-01-18T16:15:08.380

Modified: 2024-11-21T08:46:31.200

Link: CVE-2024-0408

cve-icon Redhat

Severity : Important

Publid Date: 2024-01-16T00:00:00Z

Links: CVE-2024-0408 - Bugzilla