CVE Details

Release Date:2024-01-16


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.

See more information about CVE-2024-21885 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7.8 Base Metrics: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: High
Integrity Impact: High Availability Impact: High

Errata information

PlatformErrataRelease Date
Oracle Linux version 7 (tigervnc)ELSA-2024-06292024-02-01
Oracle Linux version 7 (xorg-x11-server)ELSA-2024-03202024-01-22
Oracle Linux version 8 (tigervnc)ELSA-2024-06072024-01-31
Oracle Linux version 9 (tigervnc)ELSA-2024-05572024-01-31
Oracle Linux version 9 (xorg-x11-server)ELSA-2024-21692024-05-02
Oracle Linux version 9 (xorg-x11-server-Xwayland)ELSA-2024-21702024-05-02

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team