CVE-2023-1393

2023-03-3021:15:06

CWE-416

[email protected]

web.nvd.nist.gov

x.org server

overlay window

local privilege escalation

use-after-free

cow

dangling pointer

CVSS3

7.8

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

AI Score

7.6

Confidence

High

EPSS

Percentile

15.9%

JSON

A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.

Affected configurations

Nvd

Node

x.orgxorg-serverRange<21.1.8

Node

fedoraprojectfedoraMatch36

fedoraprojectfedoraMatch37

fedoraprojectfedoraMatch38

VendorProductVersionCPE
x.orgxorg-server*cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*
fedoraprojectfedora36cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraprojectfedora38cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
x.org	xorg-server	*	cpe:2.3:a:x.org:xorg-server::::::::
fedoraproject	fedora	36	cpe:2.3:o:fedoraproject:fedora:36:::::::*
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*
fedoraproject	fedora	38	cpe:2.3:o:fedoraproject:fedora:38:::::::*