CVE-2024-0409: fedora Memory Corruption (CVSS 7.8)

Description

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

Is your site exposed to CVE-2024-0409?

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	Versions
tigervnc	tigervnc	< 1.13.1
x.org	x_server	< 21.1.11
x.org	xwayland	< 23.2.4
fedoraproject	fedora	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux_desktop	All
redhat	enterprise_linux_for_ibm_z_systems	All
redhat	enterprise_linux_for_power_big_endian	All
redhat	enterprise_linux_for_power_little_endian	All
redhat	enterprise_linux_for_scientific_computing	All
redhat	enterprise_linux_server	All
redhat	enterprise_linux_workstation	All

References

Other References

https://access.redhat.com/errata/RHSA-2024:0320 https://access.redhat.com/errata/RHSA-2024:2169 https://access.redhat.com/errata/RHSA-2024:2170 https://access.redhat.com/errata/RHSA-2024:2995 https://access.redhat.com/errata/RHSA-2024:2996 https://access.redhat.com/security/cve/CVE-2024-0409 https://bugzilla.redhat.com/show_bug.cgi?id=2257690 https://access.redhat.com/errata/RHSA-2024:0320 https://access.redhat.com/errata/RHSA-2024:2169 https://access.redhat.com/errata/RHSA-2024:2170

Frequently Asked Questions

What is CVE-2024-0409? +

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-0409? +

CVE-2024-0409 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-2024-0409? +

CVE-2024-0409 affects products from fedoraproject, redhat, tigervnc, x.org, specifically: enterprise_linux, enterprise_linux_desktop, enterprise_linux_for_ibm_z_systems, enterprise_linux_for_power_big_endian, enterprise_linux_for_power_little_endian, enterprise_linux_for_scientific_computing, enterprise_linux_server, enterprise_linux_workstation, fedora, tigervnc, x_server, xwayland. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-0409? +

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 …

CVE-2024-0409