CVE-2022-2320

2022-09-0121:15:09

Alpine Linux Development Team

security.alpinelinux.org

xorg-x11-server

procxkbsetdeviceinfo

memory access

privilege escalation

arbitrary code

root context

cve-2022-2320

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

8.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.7%

JSON

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchxorg-server< 21.1.4-r0UNKNOWN
Alpine3.16-communitynoarchxorg-server< 21.1.3-r1UNKNOWN
Alpine3.17-communitynoarchxorg-server< 21.1.4-r0UNKNOWN
Alpine3.18-communitynoarchxorg-server< 21.1.4-r0UNKNOWN
Alpine3.19-communitynoarchxorg-server< 21.1.4-r0UNKNOWN
Alpine3.20-communitynoarchxorg-server< 21.1.4-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	xorg-server	< 21.1.4-r0	UNKNOWN
Alpine	3.16-community	noarch	xorg-server	< 21.1.3-r1	UNKNOWN
Alpine	3.17-community	noarch	xorg-server	< 21.1.4-r0	UNKNOWN
Alpine	3.18-community	noarch	xorg-server	< 21.1.4-r0	UNKNOWN
Alpine	3.19-community	noarch	xorg-server	< 21.1.4-r0	UNKNOWN
Alpine	3.20-community	noarch	xorg-server	< 21.1.4-r0	UNKNOWN