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

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.61% · top 50% of all CVEs (11 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Affected products

• Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION

  • unaffected 0:1.1.0-25.el6_10.13 – < *

• Red Hat · Red Hat Enterprise Linux 7

  • unaffected 0:1.20.4-24.el7_9 – < *

• Red Hat · Red Hat Enterprise Linux 7

  • unaffected 0:1.8.0-26.el7_9 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 0:1.13.1-2.el8_9.1 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 0:1.20.11-22.el8 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 0:21.1.3-15.el8 – < *

• Red Hat · Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

  • unaffected 0:1.9.0-16.el8_1.4 – < *

• Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support

  • unaffected 0:1.9.0-15.el8_2.4 – < *

• Red Hat · Red Hat Enterprise Linux 8.2 Telecommunications Update Service

  • unaffected 0:1.9.0-15.el8_2.4 – < *

• Red Hat · Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

  • unaffected 0:1.9.0-15.el8_2.4 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

  • unaffected 0:1.11.0-8.el8_4.3 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Service

  • unaffected 0:1.11.0-8.el8_4.3 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

  • unaffected 0:1.11.0-8.el8_4.3 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support

  • unaffected 0:1.12.0-6.el8_6.4 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support

  • unaffected 0:1.12.0-15.el8_8.1 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:1.13.1-3.el9_3.3 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:1.20.11-24.el9 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:22.1.9-5.el9 – < *

• Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support

  • unaffected 0:1.11.0-22.el9_0.3 – < *

• Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support

  • unaffected 0:1.12.0-14.el9_2 – < *

• Red Hat · Red Hat Enterprise Linux 6

  All versions: unknown

What to do

Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2023-57683 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2023-5367](https://cveledger.app/badge/CVE-2023-5367.svg)](https://cveledger.app/cve/CVE-2023-5367)

Record last updated 4 Nov 2026, 21:04 UTC.