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 ID: CVE-2024-0408
Vendor: , Red Hat
Product: , Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 6
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 3.12% (scored less or equal to compared to others)
EPSS Date: 2025-07-05 (when was this score calculated)
SSVC Exploitation: none
SSVC Technical Impact: partial
SSVC Automatable: false