CVE-2024-0229

HIGH
Published Feb 9, 2024 Modified Nov 4, 2025 CWE-787

Description

An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

Is your site exposed to CVE-2024-0229?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
x.org x_server
x.org xwayland
fedoraproject fedora
redhat enterprise_linux
redhat enterprise_linux
redhat enterprise_linux
redhat enterprise_linux_aus
redhat enterprise_linux_aus
redhat enterprise_linux_eus
redhat enterprise_linux_eus
redhat enterprise_linux_eus
redhat enterprise_linux_eus
redhat enterprise_linux_tus
redhat enterprise_linux_tus
redhat enterprise_linux_update_services_for_sap_solutions
redhat enterprise_linux_update_services_for_sap_solutions

References

Frequently Asked Questions

What is CVE-2024-0229? +
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2024-0229? +
CVE-2024-0229 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-0229? +
CVE-2024-0229 affects products from fedoraproject, redhat, x.org, specifically: enterprise_linux, enterprise_linux_aus, enterprise_linux_eus, enterprise_linux_tus, enterprise_linux_update_services_for_sap_solutions, fedora, x_server, xwayland. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-0229? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-8358

LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the …
CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. …
CVE-2026-6040

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the …
CVE-2026-6039

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a …
CVE-2026-3298

The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. …
CVE-2026-40489

editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2024-0229 — free, no signup required.