CVE-2024-0409: fedoraproject fedora Out-of-bounds Write

Vulnerability summary

CVE-2024-0409 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in fedoraproject fedora. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Timeline

1. 18-01-2024
   PublishedVulnerability first disclosed.
2. 20-11-2025
   Last modifiedVulnerability information updated.

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.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.