Description
A 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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 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 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xorg-server | 2:21.1.9-1 | — |
| Debian 13 | xorg-server | 2:21.1.9-1 | — |
| Debian 12 | xorg-server | 2:21.1.7-3+deb12u2 | DSA-5534-1 |
| Debian 11 | xorg-server | 2:1.20.11-1+deb11u8 | DSA-5534-1 |
| Debian 10 | xorg-server | 2:1.20.4-1+deb10u10 | DLA-3631-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | xorg-server | 2:21.1.7-3ubuntu2.1 | — |
| Ubuntu 22.04 LTS | xorg-server | 2:21.1.4-2ubuntu1.7~22.04.2 | USN-6453-1 |
| Ubuntu 22.04 LTS | xwayland | 2:22.1.1-1ubuntu0.7 | USN-6453-1 |
| Ubuntu 20.04 LTS | xorg-server | 2:1.20.13-1ubuntu1~20.04.9 | USN-6453-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | xorg-server | 2:1.19.6-1ubuntu4.15+esm1 | USN-6453-2 |
| Ubuntu Pro 18.04 LTS | xorg-server-hwe-18.04 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | xorg-server | 2:1.18.4-0ubuntu0.12+esm6 | USN-6453-2 |
| Ubuntu Pro 16.04 LTS | xorg-server-hwe-16.04 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | xorg-server | 2:1.15.1-0ubuntu2.11+esm8 | USN-6453-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tigervnc +6 | 1.13.1-8.el9 | RHSA-2024:2298 |
| RHEL 9 | xorg-x11-server +8 | 1.20.11-24.el9 | RHSA-2024:2169 |
| RHEL 8 | tigervnc +6 | 1.13.1-8.el8 | RHSA-2024:3067 |
| RHEL 8 | xorg-x11-server +8 | 1.20.11-22.el8 | RHSA-2024:2995 |
| RHEL 7 | tigervnc +6 | 1.8.0-26.el7_9 | RHSA-2023:7428 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | tigervnc +6 | 1.13.1-8.el9 | ALSA-2024:2298 |
| AlmaLinux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-24.el9 | ALSA-2024:2169 |
| AlmaLinux 8 | tigervnc +6 | 1.13.1-8.el8 | ALSA-2024:3067 |
| AlmaLinux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-22.el8 | ALSA-2024:2995 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1, SUSE-SU-2023:4272-1 |
| SLES 15 SP4 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1, SUSE-SU-2023:4292-1 |
| SLES 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SLES 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SLES 12 SP5 | xorg-x11-server | 1.19.6-10.56.1 | SUSE-SU-2023:4269-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SLES for SAP 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SLES for SAP 12 SP5 | xorg-x11-server | 1.19.6-10.56.1 | SUSE-SU-2023:4269-1 |
| SLE HPC 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SLE HPC 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SUSE Manager Server 4.2 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SUSE Manager Proxy 4.2 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
| SUSE Enterprise Storage 7.1 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xwayland | 23.2.2-1.1 | openSUSE-SU-2024:13362-1 |
| openSUSE Leap 15.5 | xorg-x11-server | 21.1.4-150500.7.7.1 | SUSE-SU-2023:4272-1 |
| openSUSE Leap 15.4 | xorg-x11-server | 1.20.3-150200.22.5.79.1 | SUSE-SU-2023:4338-1, SUSE-SU-2023:4292-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xorg-server | 21.1.9-r0 | — |
| Alpine v3.23 | xorg-server | 21.1.9-r0 | — |
| Alpine v3.22 | xorg-server | 21.1.9-r0 | — |
| Alpine v3.21 | xorg-server | 21.1.9-r0 | — |
| Alpine v3.20 | xorg-server | 21.1.9-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xorg-server | 21.1.9-r0 | — |
| Alpine v3.18 | xorg-server | 21.1.9-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | xorg-x11-server-Xdmx +7 | 1.20.14-26.amzn2023.0.1 | ALAS2023-2023-404 |
| Amazon Linux 2 | xorg-x11-server-Xdmx +8 | 1.20.4-22.amzn2.0.1 | ALAS2-2023-2335 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | xorg-x11-server | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | xorg-x11-server | 1.20.10-10 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tigervnc +6 | 1.13.1-8.el9 | ELSA-2024-2298 |
| Oracle Linux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-24.el9 | ELSA-2024-2169 |
| Oracle Linux 8 | tigervnc +6 | 1.13.1-8.el8 | ELSA-2024-3067 |
| Oracle Linux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-22.el8 | ELSA-2024-2995 |
| Oracle Linux 7 | tigervnc +6 | 1.8.0-26.0.1.el7_9 | ELSA-2023-7428 |
Advisories 28
- ALSA-2024:2995 Moderate: xorg-x11-server security update AlmaLinux Security Advisories · Nov 5, 2026
- ALSA-2024:2169 Moderate: xorg-x11-server security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2298 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3067 Moderate: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:2995 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2169 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2298 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Jul 12, 2026
- RHSA-2023:7428 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Jul 12, 2026
- USN-6453-2 xorg-server vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6453-1 xorg-server, xwayland vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RHSA-2024:3067 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DSA-5534-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3631-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:13362-1 xwayland-23.2.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4269-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4338-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4292-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4272-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2749 X.Org X11: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2025
- WID-SEC-2024-1248 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2024
- ELSA-2024-3067 Moderate: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2995 Moderate: xorg-x11-server security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2169 Moderate: xorg-x11-server security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ELSA-2024-2298 Important: tigervnc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ELSA-2023-7428 Important: tigervnc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 22, 2023
- ALAS2-2023-2335 Important: xorg-x11-server security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 15, 2023
- WID-SEC-2023-2735 Xming: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 9, 2023
- ALAS2023-2023-404 Important: xorg-x11-server security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 3, 2023
References
- RHSA-2023:7428 vendor-advisory
- RHSA-2024:2169 vendor-advisory
- RHSA-2024:2298 vendor-advisory
- RHSA-2024:2995 vendor-advisory
- RHSA-2024:3067 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-5380 vdb-entry
- RHBZ#2244736 issue-tracking
- https://lists.x.org/archives/xorg-announce/2023-October/003430.html