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CVE-2024-0408

medium

A flaw was found in the X.Org server.

Vendor / product: Tigervnc — tigervnc

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
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2024-01-18 16:15
Modified: 2026-11-04 21:17
NVD status: Modified
Last synced 3 hours ago
Verified against the source API 2026-11-04 21:37 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

tigervnc / tigervnc <1.13.1
x.org / x_server <21.1.11
x.org / xwayland <23.2.4
fedoraproject / fedora 39
redhat / enterprise_linux 6.0, 7.0, 8.0, 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
redhat / enterprise_linux_server 7.0
redhat / enterprise_linux_workstation 7.0

Weakness classification (CWE)

CWE-158 NVD-CWE-Other

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-04 21:37 UTC · record ↗

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