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Fencer Vulns
high 7.8

CVE-2023-5367 json

Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty

published 2023-10-25 3 y ago modified 2026-11-04 4 d ago also EUVD-2023-57683

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION 0:1.1.0-25.el6_10.13
  • Red Hat Red Hat Enterprise Linux 7 0:1.8.0-26.el7_9, 0:1.20.4-24.el7_9
  • Red Hat Red Hat Enterprise Linux 8 0:1.13.1-2.el8_9.1, 0:1.20.11-22.el8, 0:21.1.3-15.el8
  • Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions 0:1.9.0-16.el8_1.4
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.9.0-15.el8_2.4
  • Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service 0:1.9.0-15.el8_2.4
  • Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions 0:1.9.0-15.el8_2.4
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.11.0-8.el8_4.3
  • Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service 0:1.11.0-8.el8_4.3
  • Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:1.11.0-8.el8_4.3
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support 0:1.12.0-6.el8_6.4
  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support 0:1.12.0-15.el8_8.1
  • Red Hat Red Hat Enterprise Linux 9 0:1.13.1-3.el9_3.3, 0:1.20.11-24.el9, 0:22.1.9-5.el9
  • Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support 0:1.11.0-22.el9_0.3
  • Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support 0:1.12.0-14.el9_2
  • xwayland Debian 14, Debian 13 2:23.2.2-1
  • xorg-server Debian 12 2:21.1.7-3+deb12u2
  • xorg-server Debian 14, Debian 13 2:21.1.9-1

debian advisories DEBIAN-CVE-2023-5367

  • xwayland Ubuntu 22.04 LTS 2:22.1.1-1ubuntu0.7
  • xwayland Ubuntu 24.04 LTS 2:23.2.0-1ubuntu0.1
  • xorg-server Ubuntu 20.04 LTS 2:1.20.13-1ubuntu1~20.04.9
  • xorg-server Ubuntu 22.04 LTS 2:21.1.4-2ubuntu1.7~22.04.2
  • xorg-server Ubuntu 24.04 LTS 2:21.1.7-3ubuntu2.1
  • xorg-server Ubuntu Pro 14.04 LTS 2:1.15.1-0ubuntu2.11+esm8
  • xorg-server Ubuntu Pro 16.04 LTS 2:1.18.4-0ubuntu0.12+esm6
  • xorg-server Ubuntu Pro 18.04 LTS 2:1.19.6-1ubuntu4.15+esm1

ubuntu advisories UBUNTU-CVE-2023-5367

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-2025:12751RHSA-2024:2996RHSA-2024:2995RHSA-2024:2170RHSA-2024:2169RHSA-2024:0010

  • xorg-x11-server SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +10 more 1.20.3-150200.22.5.79.1
  • xwayland SLE Workstation Extension 15 SP5, openSUSE Leap 15.5 22.1.5-150500.7.5.1
  • xwayland SLE Workstation Extension 15 SP4, openSUSE Leap 15.4 21.1.4-150400.3.20.1
  • xorg-x11-server SLE Module for Development Tools 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 1.20.3-150400.38.29.1
  • xorg-x11-server SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 21.1.4-150500.7.7.1
  • xorg-x11-server SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.19.6-10.56.1

suse advisories SUSE-SU-2023:4338-1SUSE-SU-2023:4306-1SUSE-SU-2023:4293-1SUSE-SU-2023:4292-1SUSE-SU-2023:4272-1SUSE-SU-2023:4269-1

  • xorg-x11-server openSUSE Tumbleweed 21.1.9-1.1
  • xwayland openSUSE Tumbleweed 23.2.2-1.1

opensuse advisories openSUSE-SU-2024:13361-1openSUSE-SU-2024:13362-1

  • 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-2024:2170ALSA-2024:0010

  • xwayland Alpine 3.18 23.1.2-r1
  • xwayland Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 23.2.2-r0
  • xorg-server Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 21.1.9-r0

alpine advisories ALPINE-CVE-2023-5367

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 1.20.10-10

azure linux advisories AZL-31720

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-2023-5367 updated cvss 7.8

xorg-x11-server: Out-of-bounds write in XIChangeDeviceProperty/RRChangeOutputProperty

  • Red Hat Enterprise Linux 6 xorg-x11-server, xorg-x11-server-Xdmx, xorg-x11-server-Xorg, xorg-x11-server-Xvfb, xorg-x11-server-Xnest, xorg-x11-server-common, +2 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) tigervnc 1.13.1-2.el8_9.1, xorg-x11-server 1.20.11-22.el8, tigervnc-icons 1.13.1-2.el8_9.1, tigervnc-server 1.13.1-2.el8_9.1, tigervnc-license 1.13.1-2.el8_9.1, tigervnc-selinux 1.13.1-2.el8_9.1, +9 more
    fixed: vendor fix RHSA-2024:2995
  • Red Hat Enterprise Linux AppStream (v. 9) tigervnc 1.13.1-3.el9_3.3, xorg-x11-server 1.20.11-24.el9, tigervnc-icons 1.13.1-3.el9_3.3, tigervnc-server 1.13.1-3.el9_3.3, tigervnc-license 1.13.1-3.el9_3.3, tigervnc-selinux 1.13.1-3.el9_3.3, +9 more
    fixed: vendor fix RHSA-2024:0010
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) tigervnc 1.9.0-15.el8_2.4, tigervnc-icons 1.9.0-15.el8_2.4, tigervnc-server 1.9.0-15.el8_2.4, tigervnc-license 1.9.0-15.el8_2.4, tigervnc-server-applet 1.9.0-15.el8_2.4, tigervnc-server-module 1.9.0-15.el8_2.4, +1 more
    fixed: vendor fix RHSA-2023:7436
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) tigervnc 1.11.0-8.el8_4.3, tigervnc-icons 1.11.0-8.el8_4.3, tigervnc-server 1.11.0-8.el8_4.3, tigervnc-license 1.11.0-8.el8_4.3, tigervnc-selinux 1.11.0-8.el8_4.3, tigervnc-server-module 1.11.0-8.el8_4.3, +1 more
    fixed: vendor fix RHSA-2023:7526
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) tigervnc 1.9.0-16.el8_1.4, tigervnc-icons 1.9.0-16.el8_1.4, tigervnc-server 1.9.0-16.el8_1.4, tigervnc-license 1.9.0-16.el8_1.4, tigervnc-server-applet 1.9.0-16.el8_1.4, tigervnc-server-module 1.9.0-16.el8_1.4, +1 more
    fixed: vendor fix RHSA-2023:6808
  • Red Hat Enterprise Linux AppStream E4S (v. 8.2) tigervnc 1.9.0-15.el8_2.4, tigervnc-icons 1.9.0-15.el8_2.4, tigervnc-server 1.9.0-15.el8_2.4, tigervnc-license 1.9.0-15.el8_2.4, tigervnc-server-applet 1.9.0-15.el8_2.4, tigervnc-server-module 1.9.0-15.el8_2.4, +1 more
    fixed: vendor fix RHSA-2023:7436
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) tigervnc 1.11.0-8.el8_4.3, tigervnc-icons 1.11.0-8.el8_4.3, tigervnc-server 1.11.0-8.el8_4.3, tigervnc-license 1.11.0-8.el8_4.3, tigervnc-selinux 1.11.0-8.el8_4.3, tigervnc-server-module 1.11.0-8.el8_4.3, +1 more
    fixed: vendor fix RHSA-2023:7526
show 13 more
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) tigervnc 1.12.0-6.el8_6.4, tigervnc-icons 1.12.0-6.el8_6.4, tigervnc-server 1.12.0-6.el8_6.4, tigervnc-license 1.12.0-6.el8_6.4, tigervnc-selinux 1.12.0-6.el8_6.4, tigervnc-server-module 1.12.0-6.el8_6.4, +1 more
    fixed: vendor fix RHSA-2023:7405
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) tigervnc 1.12.0-15.el8_8.1, tigervnc-icons 1.12.0-15.el8_8.1, tigervnc-server 1.12.0-15.el8_8.1, tigervnc-license 1.12.0-15.el8_8.1, tigervnc-selinux 1.12.0-15.el8_8.1, tigervnc-server-module 1.12.0-15.el8_8.1, +1 more
    fixed: vendor fix RHSA-2023:7533
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) tigervnc 1.11.0-22.el9_0.3, tigervnc-icons 1.11.0-22.el9_0.3, tigervnc-server 1.11.0-22.el9_0.3, tigervnc-license 1.11.0-22.el9_0.3, tigervnc-selinux 1.11.0-22.el9_0.3, tigervnc-server-module 1.11.0-22.el9_0.3, +1 more
    fixed: vendor fix RHSA-2023:7388
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) tigervnc 1.12.0-14.el9_2, tigervnc-icons 1.12.0-14.el9_2, tigervnc-server 1.12.0-14.el9_2, tigervnc-license 1.12.0-14.el9_2, tigervnc-selinux 1.12.0-14.el9_2, tigervnc-server-module 1.12.0-14.el9_2, +1 more
    fixed: vendor fix RHSA-2023:7373
  • Red Hat Enterprise Linux AppStream TUS (v. 8.2) tigervnc 1.9.0-15.el8_2.4, tigervnc-icons 1.9.0-15.el8_2.4, tigervnc-server 1.9.0-15.el8_2.4, tigervnc-license 1.9.0-15.el8_2.4, tigervnc-server-applet 1.9.0-15.el8_2.4, tigervnc-server-module 1.9.0-15.el8_2.4, +1 more
    fixed: vendor fix RHSA-2023:7436
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) tigervnc 1.11.0-8.el8_4.3, tigervnc-icons 1.11.0-8.el8_4.3, tigervnc-server 1.11.0-8.el8_4.3, tigervnc-license 1.11.0-8.el8_4.3, tigervnc-selinux 1.11.0-8.el8_4.3, tigervnc-server-module 1.11.0-8.el8_4.3, +1 more
    fixed: vendor fix RHSA-2023:7526
  • Red Hat Enterprise Linux Client (v. 7) tigervnc 1.8.0-26.el7_9, tigervnc-icons 1.8.0-26.el7_9, tigervnc-server 1.8.0-26.el7_9, tigervnc-license 1.8.0-26.el7_9, xorg-x11-server 1.20.4-24.el7_9, xorg-x11-server-Xorg 1.20.4-24.el7_9, +3 more Red Hat Enterprise Linux Client Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-24.el7_9, xorg-x11-server-Xvfb 1.20.4-24.el7_9, tigervnc-server-applet 1.8.0-26.el7_9, tigervnc-server-module 1.8.0-26.el7_9, xorg-x11-server-Xnest 1.20.4-24.el7_9, xorg-x11-server-source 1.20.4-24.el7_9, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) tigervnc 1.8.0-26.el7_9, tigervnc-icons 1.8.0-26.el7_9, tigervnc-server 1.8.0-26.el7_9, xorg-x11-server 1.20.4-24.el7_9, xorg-x11-server-Xdmx 1.20.4-24.el7_9, xorg-x11-server-Xorg 1.20.4-24.el7_9, +8 more
    fixed: vendor fix RHSA-2023:7428
  • 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 -EXTENSION(v. 6 ELS-EXTENSION) tigervnc 1.1.0-25.el6_10.13, tigervnc-server 1.1.0-25.el6_10.13
    fixed: vendor fix RHSA-2025:12751
  • Red Hat Enterprise Linux Server (v. 7) tigervnc 1.8.0-26.el7_9, tigervnc-icons 1.8.0-26.el7_9, tigervnc-server 1.8.0-26.el7_9, tigervnc-license 1.8.0-26.el7_9, xorg-x11-server 1.20.4-24.el7_9, xorg-x11-server-Xorg 1.20.4-24.el7_9, +3 more
    fixed: vendor fix RHSA-2023:7428
  • Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) tigervnc-server-applet 1.1.0-25.el6_10.13, tigervnc-server-module 1.1.0-25.el6_10.13
    fixed: vendor fix RHSA-2025:12751
  • Red Hat Enterprise Linux Server Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-24.el7_9, xorg-x11-server-Xvfb 1.20.4-24.el7_9, tigervnc-server-applet 1.8.0-26.el7_9, tigervnc-server-module 1.8.0-26.el7_9, xorg-x11-server-Xnest 1.20.4-24.el7_9, xorg-x11-server-source 1.20.4-24.el7_9, +1 more Red Hat Enterprise Linux Workstation (v. 7) tigervnc 1.8.0-26.el7_9, tigervnc-icons 1.8.0-26.el7_9, tigervnc-server 1.8.0-26.el7_9, tigervnc-license 1.8.0-26.el7_9, xorg-x11-server 1.20.4-24.el7_9, xorg-x11-server-Xorg 1.20.4-24.el7_9, +3 more Red Hat Enterprise Linux Workstation Optional (v. 7) xorg-x11-server-Xdmx 1.20.4-24.el7_9, xorg-x11-server-Xvfb 1.20.4-24.el7_9, tigervnc-server-applet 1.8.0-26.el7_9, tigervnc-server-module 1.8.0-26.el7_9, xorg-x11-server-Xnest 1.20.4-24.el7_9, xorg-x11-server-source 1.20.4-24.el7_9, +1 more
    fixed: vendor fix RHSA-2023:7428

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

0.61% chance of exploitation in the next 30 days, higher than 49% 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 6 Extended Lifecycle Support - EXTENSION
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
  • Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
  • 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.