Xorg-x11-server: use-after-free bug in destroywindow

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Summary

CVECVE-2023-5380
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-10-25 20:15:18 UTC
Updated2026-06-23 18:17:37 UTC
DescriptionA use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.007150000 probability, percentile 0.490870000 (date 2026-06-28)

Problem Types: CWE-416 | CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Debian Debian Linux 12.0 All All All
Operating System Fedoraproject Fedora 37 All All All
Operating System Fedoraproject Fedora 38 All All All
Operating System Fedoraproject Fedora 39 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All
Application X.org Xwayland All All All All
Application X.org X Server All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 7 unaffected 0:1.8.0-26.el7_9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.20.11-22.el8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.13.1-8.el8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:1.20.11-24.el9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:1.13.1-8.el9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2023/10/msg00036.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
X.Org X Server, XWayland: Multiple Vulnerabilities (GLSA 202401-30) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
2244736 – (CVE-2023-5380) CVE-2023-5380 xorg-x11-server: Use-after-free bug in DestroyWindow af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
access.redhat.com/errata/RHSA-2024:3067 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
cve-details af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
access.redhat.com/errata/RHSA-2023:7428 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
X.Org Security Advisory: Issues in X.Org X server prior to 21.1.9 and Xwayland prior to 23.2.2 af854a3a-2127-422b-91ae-364da2661108 lists.x.org Patch, Vendor Advisory
[SECURITY] Fedora 38 Update: tigervnc-1.13.1-6.fc38 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
access.redhat.com/errata/RHSA-2024:2995 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
security.netapp.com/advisory/ntap-20231130-0004 af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
access.redhat.com/errata/RHSA-2024:2298 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2169 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
[SECURITY] Fedora 39 Update: xorg-x11-server-1.20.14-26.fc39 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Debian -- Security Information -- DSA-5534-1 xorg-server af854a3a-2127-422b-91ae-364da2661108 www.debian.org
[SECURITY] Fedora 38 Update: xorg-x11-server-1.20.14-26.fc38 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 37 Update: xorg-x11-server-1.20.14-26.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2023-10-17T00:00:00.000ZReported to Red Hat.
CNA2023-10-25T00:00:00.000ZMade public.

Legacy QID Mappings

  • 161193 Oracle Enterprise Linux Security Update for tigervnc (ELSA-2023-7428)
  • 199866 Ubuntu Security Notification for X.Org X Server Vulnerabilities (USN-6453-1)
  • 199877 Ubuntu Security Notification for X.Org X Server Vulnerabilities (USN-6453-2)
  • 242499 Red Hat Update for tigervnc (RHSA-2023:7428)
  • 284686 Fedora Security Update for xorg (FEDORA-2023-1f4f1b8365)
  • 284725 Fedora Security Update for xorg (FEDORA-2023-f111d2f306)
  • 284729 Fedora Security Update for tigervnc (FEDORA-2023-dbacf5d9f6)
  • 284745 Fedora Security Update for tigervnc (FEDORA-2023-4708733ccc)
  • 285157 Fedora Security Update for tigervnc (FEDORA-2023-4bb75fa8f2)
  • 285174 Fedora Security Update for xorg (FEDORA-2023-b88929bc79)
  • 296108 Oracle Solaris 11.4 Support Repository Update (SRU) 66.164.1 Missing (CPUJAN2024)
  • 356618 Amazon Linux Security Advisory for xorg-x11-server : ALAS2023-2023-404
  • 356738 Amazon Linux Security Advisory for xorg-x11-server : ALAS2-2023-2335
  • 356746 Amazon Linux Security Advisory for xorg-x11-server : ALAS-2023-1884
  • 356991 Amazon Linux Security Advisory for xorg-x11-server : AL2012-2023-475
  • 379276 Alibaba Cloud Linux Security Update for tigervnc (ALINUX2-SA-2023:0050)
  • 503445 Alpine Linux Security Update for xorg-server
  • 506278 Alpine Linux Security Update for xorg-server
  • 6000255 Debian Security Update for xorg-server (DLA 3631-1)
  • 6000298 Debian Security Update for xorg-server (DSA 5534-1)
  • 673442 EulerOS Security Update for xorg-x11-server (EulerOS-SA-2024-1307)
  • 673495 EulerOS Security Update for xorg-x11-server (EulerOS-SA-2024-1169)
  • 673515 EulerOS Security Update for xorg-x11-server (EulerOS-SA-2024-1131)
  • 673733 EulerOS Security Update for xorg-x11-server (EulerOS-SA-2024-1115)
  • 691339 Free Berkeley Software Distribution (FreeBSD) Security Update for xorg (9e2fdfc7-e237-4393-9fa5-2d50908c66b3)
  • 710847 Gentoo Linux X.Org X Server, XWayland Multiple Vulnerabilities (GLSA 202401-30)
  • 755188 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2023:4272-1)
  • 755191 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2023:4269-1)
  • 755204 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2023:4292-1)
  • 755217 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2023:4338-1)
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