Description
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | xorg-x11-server | xorg-x11-server 21.1.2, xorg-x11-server 1.20.14 | — |
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 | 2:1.20.13-3 | — |
| Debian 14 | xwayland | 2:21.1.4-1 | — |
| Debian 13 | xorg-server | 2:1.20.13-3 | — |
| Debian 13 | xwayland | 2:21.1.4-1 | — |
| Debian 12 | xorg-server | 2:1.20.13-3 | — |
| Debian 12 | xwayland | 2:21.1.4-1 | — |
| Debian 11 | xorg-server | 2:1.20.11-1+deb11u1 | DSA-5027-1 |
| Debian 10 | xorg-server | 2:1.20.4-1+deb10u4 | DSA-5027-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | xorg-server | 2:1.20.13-1ubuntu2 | — |
| Ubuntu 22.04 LTS | xwayland | 2:21.1.3-1ubuntu1 | — |
| Ubuntu 20.04 LTS | xorg-server | 2:1.20.13-1ubuntu1~20.04.2 | USN-5193-1 |
| Ubuntu 18.04 LTS | xorg-server | 2:1.19.6-1ubuntu4.10 | USN-5193-1 |
| Ubuntu 18.04 LTS | xorg-server-hwe-18.04 | 2:1.20.8-2ubuntu2.2~18.04.6 | USN-5193-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | xorg-x11-server +8 | 1.20.11-5.el8 | RHSA-2022:1917 |
| RHEL 8 | xorg-x11-server-Xwayland | 21.1.3-2.el8 | RHSA-2022:1917 |
| RHEL 7 | xorg-x11-server +9 | 1.20.4-17.el7_9 | RHSA-2022:0003 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-5.el8 | ALSA-2022:1917 |
| AlmaLinux 8 | xorg-x11-server-Xwayland | 21.1.3-2.el8 | ALSA-2022:1917 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | xorg-x11-server | 1.20.11-5.el8 | RLSA-2022:1917 |
| Rocky Linux 8 | xorg-x11-server-Xwayland | 21.1.3-2.el8 | RLSA-2022:1917 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SLES 15 SP2 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SLES 15 SP1 | xorg-x11-server | 1.20.3-14.5.22.1 | SUSE-SU-2021:4122-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SLES for SAP 15 SP1 | xorg-x11-server | 1.20.3-14.5.22.1 | SUSE-SU-2021:4122-1 |
| SLE Real Time 15 SP2 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-2 |
| SLE HPC 15 SP2 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SLE HPC 15 SP1 | xorg-x11-server | 1.20.3-14.5.22.1 | SUSE-SU-2021:4122-1 |
| SUSE Manager Server 4.1 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SUSE Manager Retail Branch Server 4.1 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SUSE Manager Proxy 4.1 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SUSE Enterprise Storage 7 | xorg-x11-server | 1.20.3-22.5.42.1 | SUSE-SU-2021:4136-1 |
| SUSE Enterprise Storage 6 | xorg-x11-server | 1.20.3-14.5.22.1 | SUSE-SU-2021:4122-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xorg-x11-server | 21.1.2-1.1 | openSUSE-SU-2024:11685-1 |
| openSUSE Tumbleweed | xwayland | 21.1.4-1.1 | openSUSE-SU-2024:11699-1 |
| openSUSE Leap 15.3 | xorg-x11-server | 1.20.3-22.5.42.1 | openSUSE-SU-2021:4136-1 |
| openSUSE Leap 15.2 | xorg-x11-server | 1.20.3-lp152.8.36.1 | openSUSE-SU-2021:1606-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.24 | xwayland | 21.1.4-r0 | — |
| Alpine v3.23 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.23 | xwayland | 21.1.4-r0 | — |
| Alpine v3.22 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.22 | xwayland | 21.1.4-r0 | — |
| Alpine v3.21 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.21 | xwayland | 21.1.4-r0 | — |
| Alpine v3.20 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.20 | xwayland | 21.1.4-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.19 | xwayland | 21.1.4-r0 | — |
| Alpine v3.18 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.18 | xwayland | 21.1.4-r0 | — |
| Alpine v3.17 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.17 | xwayland | 21.1.4-r0 | — |
| Alpine v3.16 | xorg-server | 21.1.2-r0 | — |
| Alpine v3.16 | xwayland | 21.1.4-r0 | — |
| Alpine v3.15 | xorg-server | 21.1.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | xorg-x11-server-Xdmx +7 | 1.20.14-12.amzn2023.0.2 | ALAS2023-2023-102 |
| Amazon Linux 2 | xorg-x11-server-Xdmx +8 | 1.20.4-15.amzn2.0.4 | ALAS2-2022-1744 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-5.el8 | ELSA-2022-1917 |
| Oracle Linux 8 | xorg-x11-server-Xwayland | 21.1.3-2.el8 | ELSA-2022-1917 |
| Oracle Linux 7 | xorg-x11-server-Xdmx +8 | 1.20.4-17.el7_9 | ELSA-2022-0003 |
Advisories 20
- ALSA-2022:1917 Moderate: xorg-x11-server and xorg-x11-server-Xwayland security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-0432 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2022-0302 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 11, 2026
- RHSA-2022:0003 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2022:1917 Red Hat Security Advisory: xorg-x11-server and xorg-x11-server-Xwayland security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5193-1 xorg-server, xorg-server-hwe-18.04, xwayland vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5027-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:1917 Moderate: xorg-x11-server and xorg-x11-server-Xwayland security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:4136-2 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11699-1 xwayland-21.1.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:4122-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11685-1 xorg-x11-server-21.1.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:4136-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:4136-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1606-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0192 X.Org X11 Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 26, 2023
- ALAS2023-2023-102 Important: xorg-x11-server security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ELSA-2022-1917 Moderate: xorg-x11-server and xorg-x11-server-Xwayland security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 17, 2022
- ALAS2-2022-1744 Important: xorg-x11-server security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 20, 2022
- ELSA-2022-0003 Important: xorg-x11-server security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 4, 2022
References
- https://lists.x.org/archives/xorg-announce/2021-December/003122.html
- https://lists.x.org/archives/xorg-announce/2021-December/003124.html
- FEDORA-2021-2eb603951b vendor-advisory
- FEDORA-2021-a7fd510294 vendor-advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1549/
- DSA-5027 vendor-advisory
- FEDORA-2021-69e96c8f68 vendor-advisory
- FEDORA-2021-664a6554a1 vendor-advisory
- https://security.netapp.com/advisory/ntap-20220114-0004/
- GLSA-202305-30 vendor-advisory