CVE-2023-1393

CVE Details

Release Date:

2023-03-29

Description

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.

See more information about CVE-2023-1393 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	7.8	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (tigervnc)	ELSA-2023-1594	2023-04-04
Oracle Linux version 7 (xorg-x11-server)	ELSA-2023-1594	2023-04-04
Oracle Linux version 8 (tigervnc)	ELSA-2023-1551	2023-04-04
Oracle Linux version 8 (xorg-x11-server)	ELSA-2023-6916	2023-11-17
Oracle Linux version 8 (xorg-x11-server-Xwayland)	ELSA-2023-6917	2023-11-17
Oracle Linux version 9 (tigervnc)	ELSA-2023-1592	2023-04-04
Oracle Linux version 9 (xorg-x11-server)	ELSA-2023-6340	2023-11-11
Oracle Linux version 9 (xorg-x11-server-Xwayland)	ELSA-2023-6341	2023-11-11

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team