VulnerabilityModified

CVE-2024-0408

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…

MEDIUM 5.5EPSS 0.32%

Does this matter?

Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.32% probability · 25th percentile
CISA KEV: Not listed
Weakness: CWE-158
Affected: tigervnc/tigervnc · x.org/x server · x.org/xwayland · fedoraproject/fedora · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for power big endian · redhat/enterprise linux for power little endian · redhat/enterprise linux for scientific computing · redhat/enterprise linux server · redhat/enterprise linux workstation
Source: secalert@redhat.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.