A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
History

Tue, 04 Nov 2025 19:30:00 +0000


Mon, 04 Aug 2025 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:rhel_els:6
Vendors & Products Redhat rhel Els
References

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Wed, 06 Nov 2024 15:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-06T20:53:28.030Z

Reserved: 2024-01-02T21:57:08.796Z

Link: CVE-2024-21885

cve-icon Vulnrichment

Updated: 2025-11-04T18:23:11.066Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-02-28T13:15:08.197

Modified: 2025-11-04T19:16:31.010

Link: CVE-2024-21885

cve-icon Redhat

Severity : Important

Publid Date: 2024-01-16T00:00:00Z

Links: CVE-2024-21885 - Bugzilla