CVE-2024-21885

Xorg-x11-server: heap buffer overflow in xisenddevicehierarchyevent

State: Published
Severity: 7.8 High
Published: Feb 28, 2024
Updated: Nov 6, 2025
Reserved: Jan 2, 2024

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
xorg-server	before 21.1.11Affected 21.1.11 and laterNot affected
xwayland	before 23.2.4Affected 23.2.4 and laterNot affected
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat	0:1.1.0-25.el6_10.13 and laterNot affected
Red Hat Enterprise Linux 7Red Hat	0:1.20.4-27.el7_9 and laterNot affected
Red Hat Enterprise Linux 7Red Hat	0:1.8.0-31.el7_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:1.13.1-2.el8_9.7 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:1.20.11-22.el8 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:21.1.3-15.el8 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat	0:1.9.0-15.el8_2.9 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat	0:1.9.0-15.el8_2.9 and laterNot affected
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat	0:1.9.0-15.el8_2.9 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:1.11.0-8.el8_4.8 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat	0:1.11.0-8.el8_4.8 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat	0:1.11.0-8.el8_4.8 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	0:1.12.0-6.el8_6.9 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	0:1.12.0-15.el8_8.7 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:1.13.1-3.el9_3.6 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:1.20.11-24.el9 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:22.1.9-5.el9 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat	0:1.11.0-22.el9_0.8 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:1.12.0-14.el9_2.5 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

References

RHSA-2024:0320vendor-advisory
RHSA-2024:0557vendor-advisory
RHSA-2024:0558vendor-advisory
RHSA-2024:0597vendor-advisory
RHSA-2024:0607vendor-advisory
RHSA-2024:0614vendor-advisory
RHSA-2024:0617vendor-advisory
RHSA-2024:0621vendor-advisory
RHSA-2024:0626vendor-advisory
RHSA-2024:0629vendor-advisory
RHSA-2024:2169vendor-advisory
RHSA-2024:2170vendor-advisory
RHSA-2024:2995vendor-advisory
RHSA-2024:2996vendor-advisory
RHSA-2025:12751vendor-advisory
https://access.redhat.com/security/cve/CVE-2024-21885vdb-entry
RHBZ#2256540issue-tracking
https://security.netapp.com/advisory/ntap-20240503-0004/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZ75X54CN4IFYMIV7OK3JVZ57FHQIGIC/
https://lists.debian.org/debian-lts-announce/2024/01/msg00016.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJBMCWQ54R6ZL3MYU2D2JBW6JMZL7BQW/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5J4H7CH565ALSZZYKOJFYDA5KFLG6NUK/

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