Description
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | xorg-server | 1.21.1.7 | — |
| 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 8.2 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 | — | — |
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 | 2:21.1.11-1 | — |
| Debian 14 | xwayland | 2:23.2.4-1 | — |
| Debian 13 | xorg-server | 2:21.1.11-1 | — |
| Debian 13 | xwayland | 2:23.2.4-1 | — |
| Debian 12 | xorg-server | 2:21.1.7-3+deb12u5 | DSA-5603-1 |
| Debian 12 | xwayland | No fix yet | — |
| Debian 11 | xorg-server | 2:1.20.11-1+deb11u11 | DSA-5603-1 |
| Debian 10 | xorg-server | 2:1.20.4-1+deb10u13 | DLA-3721-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | xwayland | 2:23.2.4-1 | — |
| Ubuntu 22.04 LTS | xorg-server | 2:21.1.4-2ubuntu1.7~22.04.7 | USN-6587-1 |
| Ubuntu 22.04 LTS | xwayland | 2:22.1.1-1ubuntu0.10 | USN-6587-1 |
| Ubuntu 20.04 LTS | xorg-server | 2:1.20.13-1ubuntu1~20.04.14 | USN-6587-1 |
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+esm4 | USN-6587-2 |
| 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+esm9 | USN-6587-2 |
| 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+esm9 | USN-6587-5 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tigervnc +6 | 1.13.1-3.el9_3.6 | RHSA-2024:0557 |
| RHEL 9 | xorg-x11-server +8 | 1.20.11-24.el9 | RHSA-2024:2169 |
| RHEL 9 | xorg-x11-server-Xwayland | 22.1.9-5.el9 | RHSA-2024:2170 |
| RHEL 8 | tigervnc +6 | 1.13.1-2.el8_9.7 | RHSA-2024:0607 |
| RHEL 8 | xorg-x11-server +8 | 1.20.11-22.el8 | RHSA-2024:2995 |
| RHEL 8 | xorg-x11-server-Xwayland | 21.1.3-15.el8 | RHSA-2024:2996 |
| RHEL 7 | tigervnc +6 | 1.8.0-31.el7_9 | RHSA-2024:0629 |
| RHEL 7 | xorg-x11-server +9 | 1.20.4-27.el7_9 | RHSA-2024:0320 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | tigervnc +6 | 1.12.0-14.el9_2.5 | RHSA-2024:0626 |
| RHEL 9.0 EUS | tigervnc +6 | 1.11.0-22.el9_0.8 | RHSA-2024:0614 |
| RHEL 8.8 EUS | tigervnc +6 | 1.12.0-15.el8_8.7 | RHSA-2024:0597 |
| RHEL 8.6 EUS | tigervnc +6 | 1.12.0-6.el8_6.9 | RHSA-2024:0621 |
| RHEL 8.4 TUS | tigervnc +6 | 1.11.0-8.el8_4.8 | RHSA-2024:0558 |
| RHEL 8.4 E4S | tigervnc +6 | 1.11.0-8.el8_4.8 | RHSA-2024:0558 |
| RHEL 8.4 AUS | tigervnc +6 | 1.11.0-8.el8_4.8 | RHSA-2024:0558 |
| RHEL 8.2 TUS | tigervnc +6 | 1.9.0-15.el8_2.9 | RHSA-2024:0617 |
| RHEL 8.2 E4S | tigervnc +6 | 1.9.0-15.el8_2.9 | RHSA-2024:0617 |
| RHEL 8.2 AUS | tigervnc +6 | 1.9.0-15.el8_2.9 | RHSA-2024:0617 |
| RHEL 6 ELS | tigervnc +3 | 1.1.0-25.el6_10.13 | RHSA-2025:12751 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | tigervnc +6 | 1.13.1-3.el9_3.6.alma.1 | ALSA-2024:0557 |
| AlmaLinux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-24.el9 | ALSA-2024:2169 |
| AlmaLinux 9 | xorg-x11-server-Xwayland | 22.1.9-5.el9 | ALSA-2024:2170 |
| AlmaLinux 8 | tigervnc +6 | 1.13.1-2.el8_9.7.alma.1 | ALSA-2024:0607 |
| AlmaLinux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-22.el8 | ALSA-2024:2995 |
| AlmaLinux 8 | xorg-x11-server-Xwayland | 21.1.3-15.el8 | ALSA-2024:2996 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | tigervnc | 1.13.1-2.el8_9.7 | RLSA-2024:0607 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1, SUSE-SU-2024:0109-1 |
| SLES 15 SP5 | xwayland | 22.1.5-150500.7.14.1 | SUSE-SU-2024:0114-1 |
| SLES 15 SP4 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SLES 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SLES 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SLES 12 SP5 | xorg-x11-server | 1.19.6-10.65.1 | SUSE-SU-2024:0116-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SLES for SAP 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SLES for SAP 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SLES for SAP 12 SP5 | xorg-x11-server | 1.19.6-10.65.1 | SUSE-SU-2024:0116-1 |
| SLE Real Time 15 SP4 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SLE HPC 15 SP4 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SLE HPC 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SLE HPC 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
| SUSE Manager Server 4.3 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SUSE Manager Proxy 4.3 | xorg-x11-server | 1.20.3-150400.38.40.1 | SUSE-SU-2024:0111-1 |
| SUSE Enterprise Storage 7.1 | xorg-x11-server | 1.20.3-150200.22.5.88.1 | SUSE-SU-2024:0121-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xorg-x11-server | 21.1.11-1.1 | openSUSE-SU-2024:13597-1 |
| openSUSE Tumbleweed | xwayland | 23.2.4-1.1 | openSUSE-SU-2024:13598-1 |
| openSUSE Leap 15.5 | xorg-x11-server | 21.1.4-150500.7.18.1 | SUSE-SU-2024:0109-1 |
| openSUSE Leap 15.5 | xwayland | 22.1.5-150500.7.14.1 | SUSE-SU-2024:0114-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.24 | xwayland | 23.2.4-r0 | — |
| Alpine v3.23 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.23 | xwayland | 23.2.4-r0 | — |
| Alpine v3.22 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.22 | xwayland | 23.2.4-r0 | — |
| Alpine v3.21 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.21 | xwayland | 23.2.4-r0 | — |
| Alpine v3.20 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.20 | xwayland | 23.2.4-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xorg-server | 21.1.11-r0 | — |
| Alpine v3.19 | xwayland | 23.2.4-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | xorg-x11-server-Xdmx +7 | 1.20.14-30.amzn2023.0.1 | ALAS2023-2024-522 |
| Amazon Linux 2 | xorg-x11-server-Xdmx +8 | 1.20.4-22.amzn2.0.4 | ALAS2-2024-2455 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | xorg-x11-server | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | xorg-x11-server | 1.20.10-12 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tigervnc +6 | 1.13.1-3.el9_3.6 | ELSA-2024-0557 |
| Oracle Linux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-24.el9 | ELSA-2024-2169 |
| Oracle Linux 9 | xorg-x11-server-Xwayland | 22.1.9-5.el9 | ELSA-2024-2170 |
| Oracle Linux 8 | tigervnc +6 | 1.13.1-2.el8_9.7 | ELSA-2024-0607 |
| Oracle Linux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-22.el8 | ELSA-2024-2995 |
| Oracle Linux 8 | xorg-x11-server-Xwayland | 21.1.3-15.el8 | ELSA-2024-2996 |
| Oracle Linux 7 | tigervnc +6 | 1.8.0-31.0.1.el7_9 | ELSA-2024-0629 |
| Oracle Linux 7 | xorg-x11-server-Xdmx +8 | 1.20.4-27.el7_9 | ELSA-2024-0320 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | xorg-server | 21.1.11-r0 | — |
Advisories 45
- 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-2024:2170 Moderate: xorg-x11-server-Xwayland security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0557 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0607 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2996 Moderate: xorg-x11-server-Xwayland security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:12751 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2995 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2996 Red Hat Security Advisory: xorg-x11-server-Xwayland 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-2024:2170 Red Hat Security Advisory: xorg-x11-server-Xwayland security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0626 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0629 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0621 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0614 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0617 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0597 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0607 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0557 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0558 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:0320 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-6587-5 xorg-server vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6587-2 xorg-server vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-6587-1 xorg-server, xwayland vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5603-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3721-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:0607 Important: tigervnc security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:13598-1 xwayland-23.2.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0121-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13597-1 xorg-x11-server-21.1.11-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0111-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0114-1 Security update for xwayland SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0109-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0127 X.Org X11: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2025
- SUSE-SU-2024:0116-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-2995 Moderate: xorg-x11-server security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2996 Moderate: xorg-x11-server-Xwayland security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2170 Moderate: xorg-x11-server-Xwayland security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ELSA-2024-2169 Moderate: xorg-x11-server security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ALAS2023-2024-522 Important: xorg-x11-server security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 19, 2024
- ALAS2-2024-2455 Important: xorg-x11-server security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 19, 2024
- ELSA-2024-0629 Important: tigervnc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 1, 2024
- ELSA-2024-0557 Important: tigervnc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 31, 2024
- ELSA-2024-0607 Important: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 31, 2024
- ELSA-2024-0320 Important: xorg-x11-server security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 22, 2024
References
- RHSA-2024:0320 vendor-advisory
- RHSA-2024:0557 vendor-advisory
- RHSA-2024:0558 vendor-advisory
- RHSA-2024:0597 vendor-advisory
- RHSA-2024:0607 vendor-advisory
- RHSA-2024:0614 vendor-advisory
- RHSA-2024:0617 vendor-advisory
- RHSA-2024:0621 vendor-advisory
- RHSA-2024:0626 vendor-advisory
- RHSA-2024:0629 vendor-advisory
- RHSA-2024:2169 vendor-advisory
- RHSA-2024:2170 vendor-advisory
- RHSA-2024:2995 vendor-advisory
- RHSA-2024:2996 vendor-advisory
- RHSA-2025:12751 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2024-21886 vdb-entry
- RHBZ#2256542 issue-tracking