CVE-2024-0408

MEDIUM

TigerVNC < 1.13.1 - Denial of Service via GLX PBuffer XACE Hook Bypass

Title source: llm
STIX 2.1

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.

References (13)

Core 13
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:0320
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2169
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2170
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2995
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2996
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2024-0408
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2257689

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 4.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-158
Status published
Products (15)
fedoraproject/fedora 39
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_for_ibm_z_systems 7.0
redhat/enterprise_linux_for_power_big_endian 7.0
redhat/enterprise_linux_for_power_little_endian 7.0
redhat/enterprise_linux_for_scientific_computing 7.0
... and 5 more
Published Jan 18, 2024
Tracked Since Feb 18, 2026