CVE-2024-0408

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.

More information : https://access.redhat.com/errata/RHSA-2024:0320

Attack vector : LOCAL
Attack complexity : LOW
Privileges required : LOW
User interaction : NONE
Confidentiality impact : NONE
Integrity impact : NONE
Base score : 5.5
Base severity : MEDIUM
Exploitability score : 1.8
Impact score : 3.6