CVE-2024-21886

2024-02-2813:15:08

Debian Security Bug Tracker

security-tracker.debian.org

x.org server

disabledevice function

heap buffer overflow

application crash

remote code execution

ssh x11 forwarding

unix

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

9.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.5%

JSON

A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

OSVersionArchitecturePackageVersionFilename
Debian12allxorg-server< 2:21.1.7-3+deb12u5xorg-server_2:21.1.7-3+deb12u5_all.deb
Debian11allxorg-server< 2:1.20.11-1+deb11u11xorg-server_2:1.20.11-1+deb11u11_all.deb
Debian10allxorg-server< 2:1.20.4-1+deb10u13xorg-server_2:1.20.4-1+deb10u13_all.deb
Debian999allxorg-server< 2:21.1.11-1xorg-server_2:21.1.11-1_all.deb
Debian13allxorg-server< 2:21.1.11-1xorg-server_2:21.1.11-1_all.deb
Debian12allxwayland<= 2:22.1.9-1xwayland_2:22.1.9-1_all.deb
Debian999allxwayland< 2:23.2.4-1xwayland_2:23.2.4-1_all.deb
Debian13allxwayland< 2:23.2.4-1xwayland_2:23.2.4-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	xorg-server	< 2:21.1.7-3+deb12u5	xorg-server_2:21.1.7-3+deb12u5_all.deb
Debian	11	all	xorg-server	< 2:1.20.11-1+deb11u11	xorg-server_2:1.20.11-1+deb11u11_all.deb
Debian	10	all	xorg-server	< 2:1.20.4-1+deb10u13	xorg-server_2:1.20.4-1+deb10u13_all.deb
Debian	999	all	xorg-server	< 2:21.1.11-1	xorg-server_2:21.1.11-1_all.deb
Debian	13	all	xorg-server	< 2:21.1.11-1	xorg-server_2:21.1.11-1_all.deb
Debian	12	all	xwayland	<= 2:22.1.9-1	xwayland_2:22.1.9-1_all.deb
Debian	999	all	xwayland	< 2:23.2.4-1	xwayland_2:23.2.4-1_all.deb
Debian	13	all	xwayland	< 2:23.2.4-1	xwayland_2:23.2.4-1_all.deb