Description
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | xorg-x11-server | 21.1.12 | — |
| 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 10 | — | — |
| 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 | 2:21.1.11-3 | — |
| Debian 14 | xwayland | 2:23.2.6-1 | — |
| Debian 13 | xorg-server | 2:21.1.11-3 | — |
| Debian 13 | xwayland | 2:23.2.6-1 | — |
| Debian 12 | xorg-server | 2:21.1.7-3+deb12u7 | DSA-5657-1 |
| Debian 12 | xwayland | No fix yet | — |
| Debian 11 | xorg-server | 2:1.20.11-1+deb11u13 | DSA-5657-1 |
| Debian 10 | xorg-server | 2:1.20.4-1+deb10u14 | DLA-3787-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | xorg-server | 2:21.1.12-1ubuntu1 | — |
| Ubuntu 22.04 LTS | xorg-server | 2:21.1.4-2ubuntu1.7~22.04.10 | USN-6721-1 |
| Ubuntu 22.04 LTS | xwayland | 2:22.1.1-1ubuntu0.13 | USN-6721-1 |
| Ubuntu 20.04 LTS | xorg-server | 2:1.20.13-1ubuntu1~20.04.17 | USN-6721-1 |
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+esm8 | USN-6721-1 |
| 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+esm13 | USN-6721-1 |
| 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+esm11 | USN-6721-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tigervnc +6 | 1.13.1-8.el9_4.3 | RHSA-2024:2616 |
| RHEL 9 | xorg-x11-server +8 | 1.20.11-26.el9 | RHSA-2024:9122 |
| RHEL 9 | xorg-x11-server-Xwayland +1 | 23.2.7-1.el9 | RHSA-2024:9093 |
| RHEL 8 | tigervnc +6 | 1.13.1-2.el8_9.10 | RHSA-2024:3261, RHSA-2024:2037 |
| RHEL 8 | xorg-x11-server +8 | 1.20.11-23.el8_10 | RHSA-2024:3258 |
| RHEL 8 | xorg-x11-server-Xwayland | 21.1.3-16.el8_10 | RHSA-2024:3343 |
| RHEL 7 | tigervnc +6 | 1.8.0-33.el7_9 | RHSA-2024:2080 |
| RHEL 7 | xorg-x11-server +9 | 1.20.4-29.el7_9 | RHSA-2024:1785 |
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_2.8 | RHSA-2024:2040 |
| RHEL 9.0 EUS | tigervnc +6 | 1.11.0-22.el9_0.11 | RHSA-2024:2036 |
| RHEL 8.8 EUS | tigervnc +6 | 1.12.0-15.el8_8.10 | RHSA-2024:2038 |
| RHEL 8.6 EUS | tigervnc +6 | 1.12.0-6.el8_6.11 | RHSA-2024:2039 |
| RHEL 8.4 TUS | tigervnc +6 | 1.11.0-8.el8_4.10 | RHSA-2024:2042 |
| RHEL 8.4 E4S | tigervnc +6 | 1.11.0-8.el8_4.10 | RHSA-2024:2042 |
| RHEL 8.4 AUS | tigervnc +6 | 1.11.0-8.el8_4.10 | RHSA-2024:2042 |
| RHEL 8.2 TUS | tigervnc +6 | 1.9.0-15.el8_2.11 | RHSA-2024:2041 |
| RHEL 8.2 E4S | tigervnc +6 | 1.9.0-15.el8_2.11 | RHSA-2024:2041 |
| RHEL 8.2 AUS | tigervnc +6 | 1.9.0-15.el8_2.11 | RHSA-2024:2041 |
| 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 | 1.13.1-8.el9_4.3 | ALSA-2024:2616 |
| AlmaLinux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-26.el9 | ALSA-2024:9122 |
| AlmaLinux 9 | xorg-x11-server-Xwayland +1 | 23.2.7-1.el9 | ALSA-2024:9093 |
| AlmaLinux 8 | tigervnc +6 | 1.13.1-2.el8_9.10.alma.1 | ALSA-2024:3261, ALSA-2024:2037 |
| AlmaLinux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-23.el8_10 | ALSA-2024:3258 |
| AlmaLinux 8 | xorg-x11-server-Xwayland | 21.1.3-16.el8_10 | ALSA-2024:3343 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | xorg-x11-server | 1.20.11-26.el9 | RLSA-2024:9122 |
| Rocky Linux 9 | xorg-x11-server-Xwayland | 23.2.7-1.el9 | RLSA-2024:9093 |
| Rocky Linux 8 | tigervnc | 1.13.1-2.el8_9.10 | RLSA-2024:3261, RLSA-2024:2037 |
| Rocky Linux 8 | xorg-x11-server | 1.20.11-23.el8_10 | RLSA-2024:3258 |
| Rocky Linux 8 | xorg-x11-server-Xwayland | 21.1.3-16.el8_10 | RLSA-2024:3343 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | dri3proto | 1.2-150100.6.3.1 | SUSE-SU-2024:2776-1 |
| SLES 15 SP6 | presentproto | 1.3-150600.3.3.1 | SUSE-SU-2024:2776-1 |
| SLES 15 SP6 | wayland-protocols | 1.36-150600.4.3.1 | SUSE-SU-2024:2776-1 |
| SLES 15 SP6 | xwayland | 24.1.1-150600.5.3.1 | SUSE-SU-2024:2776-1 |
| SLES 15 SP5 | dri3proto | 1.2-150100.6.3.1 | SUSE-SU-2024:2776-1 |
| SLES 15 SP5 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1262-1, SUSE-SU-2024:1261-1 |
| SLES 15 SP5 | xwayland | 22.1.5-150500.7.22.1 | SUSE-SU-2024:1264-1 |
| SLES 15 SP4 | xorg-x11-server | 1.20.3-150400.38.48.1 | SUSE-SU-2024:1260-1 |
| SLES 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
| SLES 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | xorg-x11-server | 1.19.6-10.71.1 | SUSE-SU-2024:1263-1, SUSE-SU-2024:1199-1 |
| SLES for SAP 15 SP4 | xorg-x11-server | 1.20.3-150400.38.48.1 | SUSE-SU-2024:1260-1 |
| SLES for SAP 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
| SLES for SAP 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
| SLES for SAP 12 SP5 | xorg-x11-server | 1.19.6-10.71.1 | SUSE-SU-2024:1263-1, SUSE-SU-2024:1199-1 |
| SLE HPC 15 SP4 | xorg-x11-server | 1.20.3-150400.38.48.1 | SUSE-SU-2024:1260-1 |
| SLE HPC 15 SP3 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
| SLE HPC 15 SP2 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
| SUSE Manager Server 4.3 | xorg-x11-server | 1.20.3-150400.38.48.1 | SUSE-SU-2024:1260-1 |
| SUSE Manager Proxy 4.3 | xorg-x11-server | 1.20.3-150400.38.48.1 | SUSE-SU-2024:1260-1 |
| SUSE Enterprise Storage 7.1 | xorg-x11-server | 1.20.3-150200.22.5.96.1 | SUSE-SU-2024:1261-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xorg-x11-server | 21.1.12-1.1 | openSUSE-SU-2024:13828-1 |
| openSUSE Tumbleweed | xwayland | 23.2.5-1.1 | openSUSE-SU-2024:13829-1 |
| openSUSE Leap 15.6 | dri3proto | 1.2-150100.6.3.1 | SUSE-SU-2024:2776-1 |
| openSUSE Leap 15.6 | presentproto | 1.3-150600.3.3.1 | SUSE-SU-2024:2776-1 |
| openSUSE Leap 15.6 | wayland-protocols | 1.36-150600.4.3.1 | SUSE-SU-2024:2776-1 |
| openSUSE Leap 15.6 | xwayland | 24.1.1-150600.5.3.1 | SUSE-SU-2024:2776-1 |
| openSUSE Leap 15.5 | dri3proto | 1.2-150100.6.3.1 | SUSE-SU-2024:2776-1 |
| openSUSE Leap 15.5 | xorg-x11-server | 21.1.4-150500.7.26.1 | SUSE-SU-2024:1262-1 |
| openSUSE Leap 15.5 | xwayland | 22.1.5-150500.7.22.1 | SUSE-SU-2024:1264-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.24 | xwayland | 23.2.5-r0 | — |
| Alpine v3.23 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.23 | xwayland | 23.2.5-r0 | — |
| Alpine v3.22 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.22 | xwayland | 23.2.5-r0 | — |
| Alpine v3.21 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.21 | xwayland | 23.2.5-r0 | — |
| Alpine v3.20 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.20 | xwayland | 23.2.5-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xorg-server | 21.1.12-r0 | — |
| Alpine v3.19 | xwayland | 23.2.5-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | xorg-x11-server-Xdmx +7 | 1.20.14-30.amzn2023.0.2 | ALAS2023-2024-583 |
| Amazon Linux 2 | tigervnc +6 | 1.8.0-24.amzn2.0.3 | ALAS2-2024-2510 |
| Amazon Linux 2 | xorg-x11-server-Xdmx +8 | 1.20.4-22.amzn2.0.6 | ALAS2-2024-2511 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | xorg-x11-server | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | xorg-x11-server | 1.20.10-11 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tigervnc +6 | 1.13.1-8.el9_4.3 | ELSA-2024-2616 |
| Oracle Linux 9 | xorg-x11-server-Xdmx +7 | 1.20.11-26.el9 | ELSA-2024-9122 |
| Oracle Linux 9 | xorg-x11-server-Xwayland +1 | 23.2.7-1.el9 | ELSA-2024-9093 |
| Oracle Linux 8 | tigervnc +6 | 1.13.1-2.el8_9.10 | ELSA-2024-3261, ELSA-2024-2037 |
| Oracle Linux 8 | xorg-x11-server-Xdmx +7 | 1.20.11-23.el8_10 | ELSA-2024-3258 |
| Oracle Linux 8 | xorg-x11-server-Xwayland | 21.1.3-16.el8_10 | ELSA-2024-3343 |
| Oracle Linux 7 | tigervnc +6 | 1.8.0-33.0.1.el7_9 | ELSA-2024-2080 |
| Oracle Linux 7 | xorg-x11-server-Xdmx +8 | 1.20.4-29.el7_9 | ELSA-2024-1785 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | xorg-server | 21.1.12-r0 | — |
Advisories 50
- ALSA-2024:9122 Moderate: xorg-x11-server security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:9093 Moderate: xorg-x11-server-Xwayland security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2616 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3258 Moderate: xorg-x11-server security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3343 Important: xorg-x11-server-Xwayland security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3261 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2037 Important: tigervnc 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-2024:9122 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:9093 Red Hat Security Advisory: xorg-x11-server-Xwayland security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:3343 Red Hat Security Advisory: xorg-x11-server-Xwayland security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:3261 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:3258 Red Hat Security Advisory: xorg-x11-server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2616 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2080 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2041 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2042 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2040 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2038 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2039 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2036 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:2037 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:1785 Red Hat Security Advisory: X.Org server security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-6721-1 xorg-server, xwayland vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-5657-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3787-1 xorg-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:3261 Important: tigervnc security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:9093 Moderate: xorg-x11-server-Xwayland security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:9122 Moderate: xorg-x11-server security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:3343 Important: xorg-x11-server-Xwayland security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:2037 Important: tigervnc security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:3258 Moderate: xorg-x11-server security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1262-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13828-1 xorg-x11-server-21.1.12-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2776-1 Security update for dri3proto, presentproto, wayland-protocols, xwayland SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1261-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1199-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1260-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1264-1 Security update for xwayland SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0778 X.Org X Server und Xming: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2025
- openSUSE-SU-2024:13829-1 xwayland-23.2.5-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2024:1263-1 Security update for xorg-x11-server SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-9122 Moderate: xorg-x11-server security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- ELSA-2024-9093 Moderate: xorg-x11-server-Xwayland security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- ELSA-2024-3258 Moderate: xorg-x11-server security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 29, 2024
- ELSA-2024-3261 Important: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 29, 2024
- ELSA-2024-3343 Important: xorg-x11-server-Xwayland security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 29, 2024
- ELSA-2024-2616 Important: tigervnc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 7, 2024
- ELSA-2024-2080 Important: tigervnc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 29, 2024
- ELSA-2024-2037 Important: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 24, 2024
References
- RHSA-2024:1785 vendor-advisory
- RHSA-2024:2036 vendor-advisory
- RHSA-2024:2037 vendor-advisory
- RHSA-2024:2038 vendor-advisory
- RHSA-2024:2039 vendor-advisory
- RHSA-2024:2040 vendor-advisory
- RHSA-2024:2041 vendor-advisory
- RHSA-2024:2042 vendor-advisory
- RHSA-2024:2080 vendor-advisory
- RHSA-2024:2616 vendor-advisory
- RHSA-2024:3258 vendor-advisory
- RHSA-2024:3261 vendor-advisory
- RHSA-2024:3343 vendor-advisory
- RHSA-2024:9093 vendor-advisory
- RHSA-2024:9122 vendor-advisory
- RHSA-2025:12751 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2024-31083 vdb-entry
- RHBZ#2272000 issue-tracking