Description
A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libX11 | < 1.8.7 | 1.8.7 |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | libx11 | 2:1.8.7-1 | — |
| Debian 13 | libx11 | 2:1.8.7-1 | — |
| Debian 12 | libx11 | 2:1.8.4-2+deb12u2 | DSA-5517-1 |
| Debian 11 | libx11 | 2:1.7.2-1+deb11u2 | DSA-5517-1 |
| Debian 10 | libx11 | 2:1.6.7-1+deb10u4 | DLA-3602-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | motif | No fix yet | — |
| Ubuntu 26.04 LTS | motif | No fix yet | — |
| Ubuntu 25.10 | motif | No fix yet | — |
| Ubuntu 24.04 LTS | libx11 | 2:1.8.6-1ubuntu1 | — |
| Ubuntu 24.04 LTS | libxpm | 1:3.5.12-1.1ubuntu1 | — |
| Ubuntu 24.04 LTS | motif | No fix yet | — |
| Ubuntu 22.04 LTS | libx11 | 2:1.7.5-1ubuntu0.3 | USN-6407-1 |
| Ubuntu 22.04 LTS | libxpm | 1:3.5.12-1ubuntu0.22.04.2 | USN-6408-1 |
| Ubuntu 22.04 LTS | motif | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libx11 | 2:1.6.9-2ubuntu1.6 | USN-6407-1 |
| Ubuntu 20.04 LTS | libxpm | 1:3.5.12-1ubuntu0.20.04.2 | USN-6408-1 |
| Ubuntu 20.04 LTS | motif | No fix yet | — |
| Ubuntu 18.04 LTS | motif | No fix yet | — |
| Ubuntu 16.04 LTS | motif | No fix yet | — |
| Ubuntu 14.04 LTS | motif | No fix yet | — |
| Ubuntu Pro 18.04 LTS | libx11 | 2:1.6.4-3ubuntu0.4+esm2 | USN-6407-2 |
| Ubuntu Pro 18.04 LTS | libxpm | 1:3.5.12-1ubuntu0.18.04.2+esm1 | USN-6408-2 |
| Ubuntu Pro 16.04 LTS | libx11 | 2:1.6.3-1ubuntu2.2+esm4 | USN-6407-2 |
| Ubuntu Pro 16.04 LTS | libxpm | 1:3.5.11-1ubuntu0.16.04.1+esm2 | USN-6408-2 |
| Ubuntu Pro 14.04 LTS | libx11 | 2:1.6.2-1ubuntu2.1+esm5 | USN-6407-2 |
| Ubuntu Pro 14.04 LTS | libxpm | 1:3.5.10-1ubuntu0.1+esm2 | USN-6408-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | libX11 +3 | 1.7.0-9.el9 | RHSA-2024:2145 |
| RHEL 8 | libX11 +3 | 1.6.8-8.el8 | RHSA-2024:2973 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | libX11 +3 | 1.7.0-9.el9 | ALSA-2024:2145 |
| AlmaLinux 8 | libX11 +3 | 1.6.8-8.el8 | ALSA-2024:2973 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | libX11 | 1.7.0-9.el9 | RLSA-2024:2145 |
| Rocky Linux 8 | libX11 | 1.6.8-8.el8 | RLSA-2024:2973 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SLES 15 SP4 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SLES 12 SP5 | libX11 | 1.6.2-12.33.1 | SUSE-SU-2023:3989-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | libX11 | 1.6.2-12.33.1 | SUSE-SU-2023:3989-1 |
| SLE Micro 5.5 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2024:2453-1, SUSE-SU-2023:3963-1 |
| SLE Micro 5.4 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SLE Micro 5.3 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SLE Micro 5.2 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SUSE Manager Server 4.2 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| SUSE Manager Proxy 4.2 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
| openSUSE Leap 15.4 | libX11 | 1.6.5-150000.3.33.1 | SUSE-SU-2023:3963-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libx11 | 1.8.7-r0 | — |
| Alpine v3.23 | libx11 | 1.8.7-r0 | — |
| Alpine v3.22 | libx11 | 1.8.7-r0 | — |
| Alpine v3.21 | libx11 | 1.8.7-r0 | — |
| Alpine v3.20 | libx11 | 1.8.7-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libx11 | 1.8.7-r0 | — |
| Alpine v3.18 | libx11 | 1.8.7-r0 | — |
| Alpine v3.17 | libx11 | 1.8.7-r0 | — |
| Alpine v3.16 | libx11 | 1.8.7-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libX11 +3 | 1.7.2-3.amzn2023.0.4 | ALAS2023-2023-383 |
| Amazon Linux 2023 | libXpm +1 | 3.5.15-2.amzn2023.0.3 | ALAS2023-2023-382 |
| Amazon Linux 2 | libX11 +2 | 1.6.7-3.amzn2.0.4 | ALAS2-2023-2296 |
| Amazon Linux 2 | libXpm +1 | 3.5.12-9.amzn2.0.2 | ALAS2-2023-2295 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | libX11 | 1.8.7-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | libX11 +3 | 1.7.0-9.el9 | ELSA-2024-2145 |
| Oracle Linux 8 | libX11 +3 | 1.6.8-8.el8 | ELSA-2024-2973 |
Advisories 24
- ALSA-2024:2145 Moderate: libX11 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2973 Moderate: libX11 security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6408-2 libxpm vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6407-2 libx11 vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- WID-SEC-2024-1226 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- USN-6407-1 libx11 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-6408-1 libxpm vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RHSA-2024:2973 Red Hat Security Advisory: libX11 security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:2145 Red Hat Security Advisory: libX11 security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DSA-5517-1 libx11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3602-1 libx11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:3989-1 Security update for libX11 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3963-1 Security update for libX11 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2453-1 Security update for libX11 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2544 X.Org X11: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 7, 2025
- RLSA-2024:2145 Moderate: libX11 security update Rocky Linux Security Advisories · May 7, 2025
- RLSA-2024:2973 Moderate: libX11 security update Rocky Linux Security Advisories · May 7, 2025
- WID-SEC-2024-1248 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2024
- ELSA-2024-2973 Moderate: libX11 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2145 Moderate: libX11 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ALAS2023-2023-382 Moderate: libXpm security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 24, 2023
- ALAS2023-2023-383 Moderate: libX11 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 24, 2023
- ALAS2-2023-2295 Moderate: libXpm security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 19, 2023
- ALAS2-2023-2296 Moderate: libX11 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 19, 2023
References
- RHSA-2024:2145 vendor-advisory
- RHSA-2024:2973 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-43787 vdb-entry
- RHBZ#2242254 issue-tracking