CVE-2024-21885

2024-02-2813:15:08

Alpine Linux Development Team

security.alpinelinux.org

x.org server

heap buffer overflow

application crash

remote code execution

xisenddevicehierarchyevent

ssh x11 forwarding

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

9.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.5%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchxorg-server< 21.1.11-r0UNKNOWN
Alpineedge-communitynoarchxwayland< 23.2.4-r0UNKNOWN
Alpine3.19-communitynoarchxorg-server< 21.1.11-r0UNKNOWN
Alpine3.19-communitynoarchxwayland< 23.2.4-r0UNKNOWN
Alpine3.20-communitynoarchxorg-server< 21.1.11-r0UNKNOWN
Alpine3.20-communitynoarchxwayland< 23.2.4-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	xorg-server	< 21.1.11-r0	UNKNOWN
Alpine	edge-community	noarch	xwayland	< 23.2.4-r0	UNKNOWN
Alpine	3.19-community	noarch	xorg-server	< 21.1.11-r0	UNKNOWN
Alpine	3.19-community	noarch	xwayland	< 23.2.4-r0	UNKNOWN
Alpine	3.20-community	noarch	xorg-server	< 21.1.11-r0	UNKNOWN
Alpine	3.20-community	noarch	xwayland	< 23.2.4-r0	UNKNOWN