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Fencer Vulns
high 7.8

CVE-2024-0409 json

Xorg-x11-server: selinux context corruption

published 2024-01-18 2 y ago modified 2026-11-04 4 d ago also EUVD-2024-16204

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 7 0:1.20.4-27.el7_9
  • Red Hat Red Hat Enterprise Linux 8 0:1.20.11-22.el8, 0:21.1.3-15.el8
  • Red Hat Red Hat Enterprise Linux 9 0:1.20.11-24.el9, 0:22.1.9-5.el9
  • xwayland Debian 14, Debian 13 2:23.2.4-1
  • xorg-server Debian 12 2:21.1.7-3+deb12u5
  • xorg-server Debian 14, Debian 13 2:21.1.11-1

debian advisories DEBIAN-CVE-2024-0409

  • xwayland Ubuntu 22.04 LTS 2:22.1.1-1ubuntu0.10
  • xwayland Ubuntu 24.04 LTS 2:23.2.4-1
  • xorg-server Ubuntu 20.04 LTS 2:1.20.13-1ubuntu1~20.04.14
  • xorg-server Ubuntu 22.04 LTS 2:21.1.4-2ubuntu1.7~22.04.7
  • xorg-server Ubuntu Pro 16.04 LTS 2:1.18.4-0ubuntu0.12+esm9
  • xorg-server Ubuntu Pro 18.04 LTS 2:1.19.6-1ubuntu4.15+esm4

ubuntu advisories UBUNTU-CVE-2024-0409

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xorg-x11-server-Xwayland RHEL 8 21.1.3-15.el8
  • xorg-x11-server RHEL 8 1.20.11-22.el8
  • xorg-x11-server-Xdmx RHEL 8 1.20.11-22.el8
  • xorg-x11-server-Xorg RHEL 8 1.20.11-22.el8
  • xorg-x11-server-Xvfb RHEL 8 1.20.11-22.el8
  • xorg-x11-server-Xnest RHEL 8 1.20.11-22.el8
  • xorg-x11-server-common RHEL 8 1.20.11-22.el8
  • xorg-x11-server-source RHEL 8 1.20.11-22.el8

red hat advisories RHSA-2024:2996RHSA-2024:2995RHSA-2024:2170RHSA-2024:2169RHSA-2024:0320

  • xorg-x11-server SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 1.20.3-150400.38.43.1
  • xorg-x11-server SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +5 more 1.20.3-150200.22.5.91.1
  • xorg-x11-server SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 21.1.4-150500.7.21.1
  • xorg-x11-server SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.19.6-10.68.1
  • xwayland SLE Workstation Extension 15 SP5, openSUSE Leap 15.5 22.1.5-150500.7.17.1

suse advisories SUSE-SU-2024:0252-1SUSE-SU-2024:0251-1SUSE-SU-2024:0249-1SUSE-SU-2024:0236-1SUSE-SU-2024:0212-1

  • xorg-x11-server openSUSE Tumbleweed 21.1.11-1.1
  • xwayland openSUSE Tumbleweed 23.2.4-1.1

opensuse advisories openSUSE-SU-2024:13597-1openSUSE-SU-2024:13598-1

  • xorg-x11-server-Xdmx AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-Xorg AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-Xvfb AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-Xnest AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-common AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-source AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-Xephyr AlmaLinux 8 1.20.11-22.el8
  • xorg-x11-server-Xwayland AlmaLinux 8 21.1.3-15.el8

almalinux advisories ALSA-2024:2995ALSA-2024:2996ALSA-2024:2169ALSA-2024:2170

  • xwayland Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 23.2.4-r0
  • xorg-server Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 21.1.11-r0

alpine advisories ALPINE-CVE-2024-0409

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xorg-x11-server CBL-Mariner 2.0 1.20.10-12

azure linux advisories AZL-33351

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-0409 updated cvss 7.8

xorg-x11-server: SELinux context corruption

  • Red Hat Enterprise Linux 6 tigervnc, tigervnc-server, xorg-x11-server, xorg-x11-server-Xdmx, xorg-x11-server-Xorg, xorg-x11-server-Xvfb, +6 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) xorg-x11-server 1.20.11-22.el8, xorg-x11-server-Xdmx 1.20.11-22.el8, xorg-x11-server-Xorg 1.20.11-22.el8, xorg-x11-server-Xvfb 1.20.11-22.el8, xorg-x11-server-Xnest 1.20.11-22.el8, xorg-x11-server-common 1.20.11-22.el8, +2 more
    fixed: vendor fix RHSA-2024:2995
  • Red Hat Enterprise Linux AppStream (v. 9) xorg-x11-server 1.20.11-24.el9, xorg-x11-server-Xdmx 1.20.11-24.el9, xorg-x11-server-Xorg 1.20.11-24.el9, xorg-x11-server-Xvfb 1.20.11-24.el9, xorg-x11-server-Xnest 1.20.11-24.el9, xorg-x11-server-common 1.20.11-24.el9, +2 more
    fixed: vendor fix RHSA-2024:2169
  • Red Hat Enterprise Linux Client (v. 7) xorg-x11-server 1.20.4-27.el7_9, xorg-x11-server-Xorg 1.20.4-27.el7_9, xorg-x11-server-common 1.20.4-27.el7_9, xorg-x11-server-Xephyr 1.20.4-27.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-27.el7_9, xorg-x11-server-Xvfb 1.20.4-27.el7_9, xorg-x11-server-Xnest 1.20.4-27.el7_9, xorg-x11-server-source 1.20.4-27.el7_9, xorg-x11-server-Xwayland 1.20.4-27.el7_9 Red Hat Enterprise Linux ComputeNode Optional (v. 7) xorg-x11-server 1.20.4-27.el7_9, xorg-x11-server-Xdmx 1.20.4-27.el7_9, xorg-x11-server-Xorg 1.20.4-27.el7_9, xorg-x11-server-Xvfb 1.20.4-27.el7_9, xorg-x11-server-Xnest 1.20.4-27.el7_9, xorg-x11-server-common 1.20.4-27.el7_9, +3 more
    fixed: vendor fix RHSA-2024:0320
  • Red Hat Enterprise Linux CRB (v. 8) xorg-x11-server-source 1.20.11-22.el8
    fixed: vendor fix RHSA-2024:2995
  • Red Hat Enterprise Linux CRB (v. 9) xorg-x11-server-source 1.20.11-24.el9
    fixed: vendor fix RHSA-2024:2169
  • Red Hat Enterprise Linux Server (v. 7) xorg-x11-server 1.20.4-27.el7_9, xorg-x11-server-Xorg 1.20.4-27.el7_9, xorg-x11-server-common 1.20.4-27.el7_9, xorg-x11-server-Xephyr 1.20.4-27.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-27.el7_9, xorg-x11-server-Xvfb 1.20.4-27.el7_9, xorg-x11-server-Xnest 1.20.4-27.el7_9, xorg-x11-server-source 1.20.4-27.el7_9, xorg-x11-server-Xwayland 1.20.4-27.el7_9 Red Hat Enterprise Linux Workstation (v. 7) xorg-x11-server 1.20.4-27.el7_9, xorg-x11-server-Xorg 1.20.4-27.el7_9, xorg-x11-server-common 1.20.4-27.el7_9, xorg-x11-server-Xephyr 1.20.4-27.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-27.el7_9, xorg-x11-server-Xvfb 1.20.4-27.el7_9, xorg-x11-server-Xnest 1.20.4-27.el7_9, xorg-x11-server-source 1.20.4-27.el7_9, xorg-x11-server-Xwayland 1.20.4-27.el7_9
    fixed: vendor fix RHSA-2024:0320
  • Red Hat Enterprise Linux 7 tigervnc, tigervnc-icons, tigervnc-server, tigervnc-license, tigervnc-server-applet, tigervnc-server-module, +1 more Red Hat Enterprise Linux 8 tigervnc, tigervnc-icons, tigervnc-server, tigervnc-license, tigervnc-selinux, tigervnc-server-applet, +2 more Red Hat Enterprise Linux 9 tigervnc, tigervnc-icons, tigervnc-server, tigervnc-license, tigervnc-selinux, tigervnc-server-module, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 6

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.