CVE-2023-6816

2024-01-1805:15:08

Alpine Linux Development Team

security.alpinelinux.org

x.org server

heap overflow

insufficient space allocation

logical button

devicefocusevent

xiquerypointer

unix

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

53.7%

JSON

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device’s particular number of buttons, leading to a heap overflow if a bigger value was used.

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